Do the PBT caps make that much of a difference between sound/quality/feel?
ahhh keycaps ... to, if I had to put the keycaps feature importance in order of importance, here would be my list:
1. Profile
2. Thickness
3. Material
My personal preference right now is: cherry profile, thick, pbt. But going this way, I would prefer thick cherry profile abs to anything else other than the same in pbt.
Like i said, this is MY personal preference, and this is like the switches, all our own favorite. But only considering the material in you keycap selection is probably not the way to go, and I must say that most stock keycaps, even pbt ones (I said most, not all) are not top quality. So if I was you, I would get the keyboard that's the most interesting without considering the keycaps, and focus on this aspect later unless you are 100% sure you will never change the keycaps on you keyboard.