hydro, i'm sorry to say it but even with the best of intentions a vaporiser can't, and will never be able replace a bong!
do what i do and buy cheap glass, they all break the same whether they cost 20 or 200, being the stoners we are they never tend to stay around long anyway. i mean fuck, i don't even clean my bongs any more, i use them til they get tired then treat myself to a new one, if it is a really special one i might change the water now and then but that is as far as i go. i don't even like my roor, it hasn't been used for along time, i'm more into my micro bongs at the minute, perfect for sitting down and chilling with.
if you want a vape i would also buy a cheap bong too, just incase the vape doesn't quite deliver that hit you are after.