It's not 8 damage, though...it's 6. 8 damage I could live with, and eventually buy up to 10....but the rules say you cap your damage at the lower of the Bow rating or the Arrow rating, and while a Rating 6 bow would deal 8 damage, Rating 6 Arrows only deal 6 damage, equivalent to a low-grade assault rifle or a good heavy pistol. I can't burst fire or full auto fire with a bow, the way I can with most firearms, so it's 6 damage per shot compared to 8-12 damage/shot at no recoil penalty.
One arrow from a bow = DV6, no AP, simple action to shoot (would be a Complex action to shoot+reload if I didn't have the Quick Draw adept power). Costs 30 nuyen per shot.
One burst fire from an AK-97 w/ Gas-3 vent, underbarrel weight, and hip pad brace = DV8, AP -1, simple action to shoot, and costing 60 nuyen a shot.
One full-auto burst from said AK-97 = DV11, AP -1, simple action, no penalties on the first shot and a -1 penalty on the second shot. Costs 120 nuyen a shot, so the most expensive option though.
Even a mundane heavy crossbow would be DV7, AP-1, single shots only.