That's tough.
High Standard,, back in the day,,, the original ones,,,, are not only excellent shooters,,, they are desirable collectable pieces. Their quality is excellent,,, but they lost a lot when Bill Ruger came along,,, built a good quality .22 that sold for less than it cost to make a HS. Stamping & casting,,, vs machining saved expenses,,, and as such,,, Bill was able to sell a lot of gun for little money.
I own a handful of High Standards,,,and they are excellent shooters. A lot trickier to work on internally,,, and yet,,, the quality is excellent. It was when gunsmiths worked in the factories,,, & not assemblers.
Dan, it's funny you mentioned Bob Shea. I met him a few times & the man's knowledge was astounding. When I think of HS,,, I recall my conversations with him.
The Houston group,,, built a good gun,,, yet many felt they "just weren't the same" and didn't support them. And again,,, the cost to buy a HS vs Ruger, Buckmarks, etc,, makes a difference to the average Joe on the street.
Economics,,, plain & simple.