I'm playing a rigger adept right now. It was positively painful to build - I had to put resources at B, Magic at C, Attributes at A (I went with the 'he has a lot of talent, but isn't incredibly well trained yet) metatype at D (elf.) and Skills at E.
I ended up dumping most of my karma into covering the weakness in skills, and I'm definitely staring down deficiencies there. I can't even imagine spending the resources on being an aug as well at this point. I definitely had other things to spend my money on besides cyber and bioware - the one piece I bought, a control rig, hurt enough. Gotta remember, the priority system doesn't let you sell back nuyen for karma at character creation - you can't pinch every little build point til it squeaks here, so adepts are likely to have other things they want to dump priority on than resources, and honestly, if I'd just been building an adept? Any extra resources I -might- have had would likely have been spent on weapon or qi foci. If I want to play a deadly swordsman, I don't at this point buy muscle toner - I can do that later, if I choose to. Instead, I buy a rating 3 weapon focus sword so I've got the three extra dice on my attack roll, and, huge advantage here, I've got a viable means to hurt a spirit.
Sooo yeah. Not inclined to do a lot of augs on an adept at character creation anymore... as it turns out, the 'you can't have everything at the start' encourages your character to grow. You know, spend some of the nuyen they make over the long term (btw, if you're only making nuyen from run payment, you need to get creative with how your character makes nuyen. There are lots of independent means to make money in Shadowrun, whether it is stealing cars to take them to a chop shop occasionally, or sending the inconvenient corpse to Tamanous... or even a jewelry heist, you can make money beyond what mister Johnson pays you.) on cyber. If you want a reason, there you have it. The reason is to make your characters have to grow - become awesome over time, rather than starting out practically made of metal and wires.