I used to not like doing heroics as DPS. But sometimes I'd end up in a guild group with a tank and so I'd be ret. I hated it. I was just another nobody to be measured by a meter.
But these days, I like ret. The heroics are harder, so we have to actually play our classes more fully. The other day I remarked something like "CC and an interrupt, I feel like a real class!" It wasn't just that ret got an interrupt, but that it became needed. Repentance is used on most of the trash pulls because things just plain hit hard. I'm interrupting bad cast after bad cast. I'm using hammer of justice if things get dicey. I'm using divine protection during bad phases. Even my Holy Radiance can do something helpful.
I'm not looking forward to the day when we overgear everything again and I'm back to trying to spam AoE as best I can just to keep up.