I did that with UpBux, but it kinda failed. I bought about 15-20 in total. I made just under what I put in. I probably won't do that with NeoBux right now but maybe later.
Well, I have joined that over a year ago since PTCs go ino a BOOM.
But after a few cashouts, I quit since the earnings is so slow if you don't have active referrals.
Basically, PTC earnings rely mostly on active referrals.