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If they're playing unremarkable techno or electronica, I'd wager that it's precisely because it's unremarkable. I agree with the poster who said it beats than cock rock: you may not exactly like it, but (unless they're playing happy hardcore), does it really crawl in under your skin?
Then again, my gym playlists mostly consist of cheeseball industrial and synthpop club hits, which is to say, simplistic 4/4 dance beats made into English-language pop songs for a German audience. A particular favorite, and a sterling example of the absurd shit you can get away with, is Informatik's Nymphomatik..