Putting the last two posts (Theo and Tony) together leads to the conclusion that everyone needs two, not one 1911.
Get one for personal reasons in whatever caliber suits your taste. Get one for the Original caliber, 45 acp.
The latter is the real feel, the real deal.
I obtained my original 45 acp when the series 80 was just introduced. Using BarryLee's web link, I was looking to see if Colt has modified the potential problem my Combat Elite has. Mine has the "accurized" barrel bushing which is not solid but consists of the outer ring and four tangs machined to align with the barrel to make it more stable at the front. While it shoots far better than most 1911's, the failure mode is very bad. I know of a failure where one of those tangs broke off and it did not happen on the last round in the magazine. The gun was hard jammed closed on a live round. So when I shoot mine, I replace with a standard solid colt bushing. Lose some accuracy but rather not risk the hard failure mode. Moral of this post is be sure that the 1911 you get has the solid bushing. Mine was stock series 80 CE. Barry's above link tells me that Colt now uses the series 1991 which is based upon the series 80. Could find nothing to indicate whether or not they still use or offer the accurized bushing in the current listings.
Oh yes, especially for Tony, on Barry's above link, mouse over to "catalog" and select special editions, then select 1877 Bulldog Gatling Gun. What you think ? Can you actually get one of these things without doing the NFA stamps and approval ? I can only dream about the "carrage model".