I have to agree that right now, the Gal-R is obsolete at the moment. The Odyssey Operations does everything the Gal-R can, but better. The only niche the Gal-R has is sitting in someone's drydock, flipping its long black locks Emo-like while contemplating how "life is paaaaaaainnnnn"..
Since the Galaxy X is getting saucer separation. I don't see why the Galaxy R can't use cloak I mean ithe Enterprise D used cloak in that one episode and pretty sure they can install a cloaking system on the Galaxy R and give it something that stands out against the Galaxy X or the Odyssey so that more people will spend c points in buying one. The only reason why no one buys a Galaxy R is because of how its overshadowed by the other crusiers.