When Plus first came out, I was pretty annoyed that there was no discount for existing Qore subscribers. After only a couple months though, I'm starting to think they did me a favour.
Aside from the full download of LBP and Infamous (both of which I own anyway), I haven't seen anything worth the money it costs.
Wow, free ORIGINAL Tomb Raider, money well spent.
Seriously, you can probably get that game on disc cheaper than paying for Plus subscription which you cannot get out of until the end of the term.
Plus early access to demo and lame free games are not really worth it.