Personally, i'd rather play on at least one tom with some kind of sound, than to play on 3 toms that sound the same with towels taped to them with them all sounding like your are hitting on a mattress.
I'm guessing alot of the beginner drummers don't know that new heads could help out the sound of drums alot and could make even the worst kits sound decent. So if your heads are all beat up, don't cover it up with a cut-up towel, change the heads!