By "boycotting" I mean not buying the caches at all and stick to the game. Still thinking of Shadow of War on this because caches there don't seem to be too invasive but they are still there and I don't like that.
Back on topic, I've never even played Rift, but it sure looks like a last attempt at getting money before the game is over forever. I doubt anyone would buy a cache for the game right now, but I've seen people dumping inexcusable amount of money on overglorified flash games, so I dunno.