Being old, and cheap, and still refusing to accept I should pay "panic" prices, I think its too much money.
Of course, that opinion is tempered with the fact that I have had a Super Single Six convertible, since 1983.
I guess the magnum cylinder is a plus, I never use it. For me, the thing that puts my gun ahead of a regular Single Six is the adjustable sights. The New Model lockwork doesn't hurt, I like it and all my other Ruger SA's are new model guns. I've had 3 screw Rugers and while they are fine guns I don't see them as any better than the new model guns in any way, and the old models are limited to 5 rnd carry for safety.
I'm not, and won't be one of the guys who files on sights to match point of aim with point of impact. As a handloader I "adjust" my ammo to the gun, when possible. With a rimfire, its not possible, and your choices are mod the fixed sight gun, or try different ammo until you find a brand that hits where you hold. And, with today's current lack of ammo supply variety, that's tough.
OR, you avoid this problem entirely by using a gun with adjustable sights.
If you want that OM Ruger because you want that OM Ruger, fine, people collect them, pay the collector's price.
I don't collect them and I'm not going to pay what I consider an overinflated price.
