Moving from $25 to $50, is it worth it?

I've been mostly playing $25NL, where I can basically find an easy game anywhere, and have no problem 8 or 10 tabling at 5-10BB/100.

I just tried some $50NL on PokerRoom network and the tables became significantly tighter. It almost seems that it's not as profitable to play at $50NL because of this, and I also probably can't multitable as much. However, I did fairly well at the few $50PL tables they had, which were fairly loose.

What kind of experience have you guys had with this? And what would you recommend as a plan to move up?