I just purchased my 9mm Shield off of GunBroker. When I first started looking on GunBroker they were all over the place. When I finally decided to buy mine there was only 1 on GunBroker. I couldn't wait and it cost me, but I am happy to get it. I have had 2 40 cal, hated them both, no they were not shields. The felt recoil on a 40 cal is just plain uncomfortable to shoot. Much rather shoot a 45 or 357 than a 40.
Probably just me though.