lets see, no caps:
bow, rating 15, price 1500
10 arrows, price 50
total 1550 for a 10 shot anti tank weapon
aztech striker, price 1000
anti-vehicle rocket, price 1000
total 2000 for 1 shot anti tank weapon
What would be interesting would be to have the arrows go up in price in a similar manner to the bow, putting a limit on the damage it could transfer to the target, and perhaps shatter on launch if it was not at least half the rating of the bow when fired. If the end package price came out about the time, then it would be a tossup between getting the mods and such and go troll bowman, or get the skills and go with the launcher (say if one play a gnome with aviator goggles and a manic grin).