I think part of the issue has been an increased use of web series/edits/etc. When I first started buying movies, the only thing to watch online were trailers for next years movies (that wouldn't be available for another 3-4 months). By the time they came out, there was so much hype and stoke, it didn't realty matter is the movie was actually good or not, it was amazing.
I also have no interest in urban, so there is likely a direct correlation between the increase in urban and my decrease in interest (also why I'm enjoying TGR and MSP more these days) in newer films.