There are low end cymbals that sound good for sure, but as has already been said, a cymbal has its sound and that's it. So, regardless of value, good sounding cymbals are more important because it's easier to get any drum to sound better than it is to get a cymbal to sound better. So, whatever budget you have, focus on good sounding cymbals first (and if a low budget, shop around for something that sounds good to you, even if used).