Randalls are collector's items - went out of business after a short run.
If you get the left handed model, you've really got something.
Oregon Kimbers are becoming collectable - believe it or not.
Some of the old WWII and WWI Colts in pristine shape can command about $5000.00.
Oh, and how can I forget! Any 1911 reworked by BamBams is worth a fortune these days. I happen to have a Kimber Gold Match for sale by the way.