FatalT -
Yeah, this is something I got over very early in my life. My tastes from age 12 on (70's rock, '60's pop) were so hopelessly uncool during the '80s that I had to stop caring what other people thought very quickly just to stay sane. Now it's perfectly fine to like Led Zeppelin and the Beatles, it seems but at that point, it was social death. Who the fuck cares. I always listened to a whole bunch of stuff, but people choose to define you by the most non-conformist stuff in your collection. It is possible to like an album of show tunes without being a screaming cigarillo. Ditto with metal and punk and classical and jazz. But back then, if you liked Led Zeppelin or Deep Purple, it was assumed you lacked the capacity or curiosity to like anything else.
Now that everyone can easily build up insane collections of music, people have got a lot more open to liking more than one type of music, I think. If you can only afford one album a month, the choice between Led Zeppelin and the Smiths becomes a defining character moment for a mopey teen in search of a social group to bond to. I like Muse, but they represent a fraction of 1% of my music collection. I don't feel any need to go to war on their behalf.
Hopefully the same mind-opening process will happen with games too, once we get rid of the hardware allegiance mindset.