I'm finding with my games that I get very excited with the game mechanics in the beginning, finding the rough versions of the game to be fun, but after a large amount of testing I become jaded to the parts that were once fun. I imagine this would happen with just about any game being played so much, but a large amount of testing seems to be required to improve the details of a game, and to get the balance and pacing right.
I end up just moving onto new games, feeling more excited about them than the previous ones. While I do feel I've improved from game to game, I'm concerned how I'll get a game to feel finished if I keep jumping to new ones. Maybe I should keep doing this and just rework the older games later, after they've had some time off and are more exciting again? Or maybe testing with more new people will get new perspectives on the game to bring back the excitement?
Do you encounter this too? What do you do to work through it or around it?
I still haven't done blind playtesting. I guess I thought of it as more of a late stage type of testing, to make sure the rule book is well written, but it sounds like it could be useful a bit earlier too, seeing how people play the game when we're not butting in.