To be honest, unless I'm booting 4.0 I forget I've even got a PPC unless I run SysSpeed or WhichAmiga which jolts my memory for me. They're fun to have and fun to own but, for all intents and purposes, I'm certain they only sell for the money they do because they're the bees knees for classic Amigas. Whether you actually use that functionality is entirely a different story and, if people took a real hard look at them and what they offer, the price would be nowhere near as high imo.
Just go back to 68K only datatypes, media players etc. You'll soon remember. Alternatively, if you already are using those, try their PPC counterparts.