Right now, I don't have plus currently, and I'm looking for that "key" game that will get me to jump back on it. Both of my kids got 3 month passes for Xmas, and they were trying Vita games out, but the passes recently expired. They weren't playing them all that much and they didn't even ask me about renewing it, so I just let it expire. I would probably sign at least one of them back up for a 1 year plan, but only when they add a couple of more key games. I'd really prefer a couple more strong Vita games. Rayman Origins and Hot Shots Golf would be a one, two combo that would get be back on board.
As for PS3 games, honestly, there really isn't much that I'm really dying to play. Journey would be a cool free game to play. I'm not sure I'd jump back on Plus just for Journey, but it would make me consider it...