We sell more of the stainless/laminated .17HMR rifles than the .22 magnums but that is no indication that the .22 Magnum is a bad gun, this is just where the market trend is leaning right now.
Marlin Bolt rifles are some of the best guns, at an affordable price, on the market right now.
If you want one, there are no quality issues that would prevent you from buying it.