To each their own. Use whatever your budget allows or your preference is. The OP asked about belt drives and what was out there. If you are uncomfortable using expensive parts you feel are not necessary then don't do it.

Amazing to me how many here will gladly share their thoughts that don't pertain to the questions at hand. Yet will happily take the opportunity to belittle, or take pot shots at anyone who does not use what they use. Yet often those same folks have never tried the parts they are belittling. I compare it to my kids when they were young and said they did not like a certain food yet had never tried it, so how can they have a qualified opinion on the subject. Just food for thought..