1.  S & W Model 29, 4"
2.  Ruger Mk. 1 Bull Barrel
3.  Springfield Armory 1911a1 (NM frame), .45
Those are the only handguns I've ever bought at retail, and I still have them today.  I also bought a Ruger Vaquero .45 when they first came out, but I sold it.
Everything else I have was bought used, many were BNIB.
So, to round out the list:
4.  Kimber Stainless Target 1911, 9mm
5.  Colt Government Model Mk. IV, Series 70, .45