Hot take: Shops hate money. Okay but seriously, how many times have you seen a "pro only" tool that's just a simple jig in a fancy box? I've got a drawer full of old sockets and pipe scraps that do the same jobs. It's not about being cheap, it's about knowing how force actually works on a bike. That press you made probably worked better because you took the time to line it up right, instead of just cranking on some shiny lever.