Cate, I have been using RC papers pretty much for the last 15 years for all of my prints. Prior to that I used Ilford Galerie which I thought was very good.
I made the change due to feeling bad about water use and after working in a commercial lab and seeing just what could be achieved with RC papers.
When Ilford RC MGIV came out, I figured that here was a paper that would do for most of my work and allow me to be conservative with the environment.
It's also great to be able to do a quick test print and run it through the Paper dryer inside 5 minutes.
As far as longevity goes, our wedding, 19 years ago, was printed by myself on RC paper MGII I think. None of the prints even look like they are about to degrade.
Being a colour printer one soon realises that most colour prints are printed on RC paper. I haven't seen too many colour prints degrading, yes, I have seen colours fading, but that is another issue.
I'm very happy with my decision to run with RC paper.
The processing is more environmently friendly.
The processing is really fast.
The stability, in my own experience, is alright for my intended purpose.
The cost factor means I can extend the hobby further.
The very best photographs I have ever seen, were original Ansell Adams printed prints. They are in our national Gallery of Victoria Museum. In short, they were of a quality that I don't think many people ever see first hand.
If you are talking about this kind of quality, then you would naturally work out to exacting standards, the possibilities of any and/or all papers available, along with archival requirements.
I don't really have this problem, to me it's an affordable fun hobby and I keep it that way.
Mick.