I learned long ago to go ahead & jump on some guns when they were offered & they were not the "normal" variety if I had even the slightest idea I'd want one. As such, I've managed to gather several good guns that are hard to find & expensive when discovered.
I jumped hard on the 327 Blackhawk when it was offered & I love it. Some folks say it's too heavy. Not me. I like the balance & weight. But when they offered the Single-Seven,,, I jumped on one of those as well. It's smaller frame & it using a 7 shot cylinder makes loading & unloading a little tricky due to alignment & space available,,, but still worth it.
Just keep looking around as they pop up from time to time.