To me, refurbishing a gun makes them look nice, but collector value drops way off I.M.O. because to me is the same as having a gun with zero original blue, which would only be shooter grade and not put into a collection.
Of course, there are always those who would rather have a reblued example of something they need in their collection just to fill a hole, but resale later is absolutely horrible.
Then...for those that are reblued and done right (right color blue, no polishing/buffing issues...looks factory) I guarantee that not even two to three generations from now somebody will be peddling them as a factory finish. That is the slippery slope and I'd just as soon see Ruger collecting be unadulterated. Unfortunately there are already a lot of nice guns in well-meaning collections that have been redone, but purchased as factory. Guaranteed it will cause a lot of tough feelings down the road. Just glad I don't have to experience it.
To put this in perspective with another hobby, coin collecting, just ask a seasoned collector what he things about "cleaned" coins..to make them look like new. To me is the same difference rebluing a gun, the shooter value remains the same but it is completely lost its collectibility.
I look at it like this, if one has the patience and the $, if somebody wants to add a collectible Ruger variation to his collection, just have the patience to wait....there are a lot of 95%+ "ORIGINAL FINISH" guns out there, you just gotta get out and find them. In the long run, you will be glad you waited.
Chet15