Best Combo Amp Under $100?
the acoustic b10 will be one of the few inexpensive combos that has a 10" speaker (kustom does, as well); most are either 6.5 or 8". i had a b20 that i was happy with. like jimmym says, if you up your budget a few bucks more, your options open up.
as long as you know going in that you're buying a low-priced practice amp and not a stack, you'll be fine. if you're like a bunch of online reviewers who're p!ssed that their 10-15 watt practice amp can't hang with their bud's drum kit or 50w guitar amp, then you'll be likewise disappointed.
scope out the local pawn shops for something used, as well, for a bigger b4b.