Tek -- believe me, all significant others are not created equal. Staying single is infinitely better than being hitched to the wrong person, but there are a few rare folks out there who really do have a positive impact. Now, whether that's "better" than being single -- that I can't say. It's just a matter of trade-offs.

Anyway, as if anyone asked me, I'd say that going out looking for a s.o. is the wrong way to go about things -- but if you happen to meet someone who works well for you, well, that can be a good thing.