I doubt you'll be disappointed in the Single 6. Every one I've ever shot has worked very well. Remember they were designed at a time when semi-autos weren't as reliable so they were very popular guns. Getting a .22 semi-auto to function well was especially hard to do way back when. So revolvers were the cat's meow. Ruger made very good ones and they kept on making good ones well after they started making good semi-auto pistols.
For certain things you still can't beat a revolver like shooting shot shells to kill snakes or whatever. It's hard to get a .22 shot shell to kill anything though but still that's one area where it's best to go with a wheel gun.
As for the accuracy of revolvers not matching the accuracy of semi-autos all I can say is I have a very accurate revolver (it's not a .22 or a Ruger). I was showing off with my Sig P220 when the range master decided to try to show me up with a revolver just like the one I have. He matched me shot for shot for about half an hour. Then I went to the truck and got my S&W 629, just like the range master's gun, and brought it back to shoot. I told him I needed to get in a few warm up shots at which time he decided it was getting late and time to close the range.
I think he believed I would do better with that revolver. I had only owned it a short time before that and I needed some practice time to be honest. But he sure thought it would do better than my Sig. The truth is both are very accurate handguns.
I don't know if the comment was just about lower priced revolvers (if you think $500 is a low priced revolver - I guess it is compared to what I could get out of my 629 right now) but I've seen lots of them do very well in lots of calibers and made by lots of companies. I have my reasons fo wanting to have both. I like the high capacity of a good semi-auto (I wish my Sig held more rounds but it's more of a duty gun than a CCW gun anyway) and I like the ability of revolvers to deal with large calibers. Yes I know about Desert Eagles etc. but I prefer guns I can actually afford.
There are lots of reasons to own a revolver not matter wht caliber it is. And some of them are very accurate. I could talk about Bob Munden for a while I guess. He certainly didn't have any problems making a wheel gun hit what he aimed it at.