As my screen name implies...I'm a huge fan of 2-channel music and have been for over 40 yrs. That said...now that my new system is complete and I'm more in music collection mode...maybe 2 out of every 4 music content purchases have been multi-channel audio. It's not just better than I expected, it's way better than I ever imagined it would be.
So...if I were in your shoes instead of an integrated amp, I'd just find a comparably priced AVR and build from there...maybe you eventually get to multi-ch music, maybe you don't, but the front end cost of an integrated amp vs an AVR shouldn't be the reason that you don't.
FWIW, 60w is more than enough power for Klipsch unless you intend on routinely rocking the house .