Some shows I can rewatch again and again but some I feel no need to see again. I, however, have an OCD problem regarding dvds, because if I love a show/have at least one season of it on dvd, I need to own EVERYTHING. So even if I'm not wild about buying s5 of SGA, I'll just have to suck it up and give them my money. Otherwise I'd notice it's absent every time I looked at my dvd collection.

I know, I'm weird ;P