I'm gearing up to run a campaign here at the start of January and I'm trying to head off player questions before they ask them (and thank you all for the input as Fizzygoo mutters something about a recent paper about online forums and that argument and debate help to ferment a tribal cohesion
).
I hadn't seen the SR4A, pg. 222 about the +2 limit to upgrades.
I'm trying to figure out the best commlink a character can start with through Character Generation, pre-play (I'm also limiting the players to SR4A as most have never played 4th edition and about half have never played SR any edition). I cringe at the "well, my character spent a year to build an x/x/x/x rating commlink before gameplay" statement but want to provide the opportunity for that as it adds to character background, "this is my lucky deck, I built this deck after my wife left me and when I finished it after a year, it's like a chick magnet, the women see my AR persona and can't help but send me a link to hook up."
The stock Commlink models and OSes have no availabilities listed and the highest rated model, the Fairlight Caliban, is a 4/5 and for OS, it's the Novatech Navi with 3/4. The Hardware Upgrade Costs Table (SR4A, pg 222) gives rating 5 (Response and Signal) as availability 12. For the coding of the System/Firewall, SR4A pg. 232 explicitly lists no availability for the program ratings.
So with the Caliban being available at character creation, and the highest hardware upgrades available being 5, looks like Chaemera (quoted below) is correct (and since I'm not using Runner's Companion, I don't have to worry about the Restricted Gear quality).
So my fear now, well, more like mild concern, is when a player says "but I purchased a commlink Facility 'tool' (Availability 12, 100,000¥, SR4A p. 332) and built my Response, Signal, and 'case' (motherboard, buses, etc.) so I can make a x rated commlink." The base reply would be...well, fine, double the prices for hardware upgrades and because the Facility is Availability 12, then the highest/best you can make is rating 5 (upgradeable to 7 later on once game starts). But again, I weep at nothing RAW listed...well, not weep, but rather slightly shrug my viscous shoulders. (Seconding Bradd's comment about nothing listing build-from-scratch...at least that I could find, heh).
As far as the cost of a case, I agree with the idea that the case is the 2070 equivalent of the motherboard, buses, etc. (else why is there a +2 upgrade cap to hardware?) I would adhoc rule that a case costs 1/4 * (stock model cost - the hardware upgrade costs for that model) and I'd average (round up) the stock model's stats for what it's base stats would be.
For example, the Caliban is 4/5, so that averages (round up) to 5. So the cost of a case that can hold rating 5 hardware is 1/4 * (8,000¥ - 3,000¥) = 1/4 * (5,000¥) = 1250¥. To see how the rest of the models work out...
Well, that didn't work out...as all stock models with an average (round up) rating of 3 or less ends up being a negative cost; Sony Emperor 2/3 700¥, avg rating 3, upgrade cost for 2/3 = 900¥ so 1/4 * (700¥ - 900¥) = -50¥. And there's a ~400¥ spread between the lowest and highest avg-rating-4 models.
So then to keep it simple, case costs 20% of the stock model and still use the average (round up) rating of the stock model for it's before-upgrade max rating and the range between highest and lowest just represents the "coolness" factor between different cases.
So, to build from scratch...
* Commlink Facility: 100,000¥
* Case (Caliban based * 20%): 1,600¥
* Response 5 (x2 upgrade cost): 8,000¥
* Signal 5 (x2 upgrade cost): 2,000¥
* "Generic" System rating 5 for 2,500¥
* "Generic" Firewall rating 5 for 2,500¥
Total: 116,600¥
Of course a player could substitute the Facility for a Contact, probably 4-Connection, 3-Loyalty minimum (which would save the character 13 BP as 100K¥ is 20 BP).
...perhaps
I don't think so, for the following reasons:
* The prices listed on page 232 are for buying from scratch.
* Upgrades are limited to +2 for hardware (SR4A, pg. 222), you can't upgrade the Meta Link to 5/5.
Given the scaling of the prices, I'm willing to believe the upgrade prices listed on page 222 are total (ie, going from 3 -> 5 and 4 -> 5 costs the same)
Therefore, might I suggest this instead:
* Novatech Airwave (3/3) for 1250
* Response Upgrade (5) for 4000
* Signal Upgrade (5) for 1000
* "Generic" System rating 5 for 2500
* "Generic" Firewall rating 5 for 2500
Total cost: 11,250 ¥.