I often click on YouTube videos of people playing live in the mid '70s and it just seems like there was a few years where EVERYONE was using Ovation acoustics. Is that just confirmation bias or did they have the market covered for a few years back then? Should I be looking for a mid 1970s Ovation? I really don't like the bowl back design. To me, they're very uncomfortable as they want to slip out from my grasp, lol.