I agree that the Mk-series and/or Buckmark models are cream of the crop.
Difference now that I see is that people are looking for the tactical model look/feel that mirrors as much as possible their full-size sister gun (M&P, 1911-22's etc.).
But I agree that if the the look and feel of the tactical guns are not a significant variable/factor, why not go with the pedigree of the lot? Also, the slides on the newer line of .22lr pistols tend to be either aluminum or zamak-like material which IMO is obviously of an inferior overall quality than the Mk-series or Buck mark line of .22lr pistols. There are, however, exceptions as in the case of the CZ .22 or the RIA 1911-22 as well as a few others.
I have a Ruger MKIII and a Colt (umarex) 1911 in .22lr. The Ruger is a much higher quality gun and more accurate, but I find I shoot the 1911 a lot more, Ij is just more fun