The problem is that if you don't increase the limit, you may end up with it not becoming a real hobby because you're on a crap bike. I'm not going to go all elitist on you and say you need to drop 3 grand on a bike to have fun, because that's not true at all. An entry level bike shop bike will do you just fine. But at some point, the bike will be junk and there's just more of a chance of you wondering how anyone can possibly like this sport.