Bit of a provocative topic maybe, but has prompted some thoughtful responses..
I consider that there are two 'versions' of R&B in existence at the moment - the main floor version and the dedicated room/venue version. The main floor followers often consider the dedicated room a bit too hardcore, and the dedicated room followers consider main floor R&B a bit too Northern.
Due to my appetite for new sounds, my preference in recent years has moved from nighters to the smaller dedicated venues that seem to come up with the goods, possibly due to there being less pressure to maintain a full dance floor. It also provides an opportunity for lesser known collectors/djs to spin a few and this often throws up a few nice surprises.
So no, I don't agree R&B is dead. If you seek out the real R&B it's actually thriving in a nice underground sort of way, and that makes it far more interesting to me than attending a Northern niter where I can sing along word perfect for a good part of the night.