It's like the old school 3rd gen steel guns. I want one in .40 caliber.
The S&W 3rd gen steel guns are near and dear to me. My very first gun was a 5906 (all stainless, 9mm, 15+1). I carried it in Desert Storm in a holster that was custom made for it by our parachute riggers.
I've since acquired:
4506 (5" .45 ACP, all stainless)
4006 (4" .40 all stainless)
1006 (5" 10mm, all stainless)
3913 (3" 9mm compact single stack, alloy frame, stainless slide)
6906 (3.5" compact double stack, alloy frame, stainless slide)
And of course, another 5906, along with spare springs, magazines, and parts for all of them.
Parts for those guns are getting harder to find. S&W stopped making them in the mid 1990s, and stopped making parts not long after.
Prices have really started to rise on them as well. A clean 1006 with original box will get $1,200 - $1,500 all day long. The really rare ones, like the 1076 (4.25" barrel version of the 1006 that was adopted by the FBI) go for much more if they've got paperwork or the box.
I saw a NIB 1006, original box and tools, appeared not to have been fired, go for well over $2,000 on GB. I was bidding on it, but it quickly went well over my budget. Just as well. I would have wanted to enjoy shooting it.