I hardly touch Photoshop anymore, 99% of all my image processing runs through Lightroom 4 and, if I need spot touch ups or effects, into Snapseed or Flare. If those didn't do the job, I'd get Photoshop Elements if I didn't already have PSCS5.
Lightroom is not part of the Creative Suite so it should continue to be offered standalone ... and it solves the "keeping up to date on raw processing support" business nicely.
My needs are simple, LR is the only Adobe product I use with any regularity now. I know that not everyone can do the same as I.
However, if I do need the Creative Suite for some serious project that I couldn't do otherwise, I'd have no problem opening a subscription to the Creative Suite Cloud (or whatever they call it) for however long I needed it, then closing the subscription. Seems a fair savings to me, as I'd only be paying for it when I needed it and I would always have the latest, full suite of tools at my disposal. Without having to put out $1500 in a lump for a lot of stuff I only use very occasionally.
G