It really depends on how comfortable you are with the 1911. I really like the weight and feel of mine and cost isn't really a concern at this point. I've owned several 9.mm but have always been a 1911 tactical fan.
I just purchased my first RIA 1911 Tactical. I'm very impressed with the feel and look of the firearm. I will be firing it today for the first time this afternoon. For the price it seems to be a great deal. I will post my feeling on firing later today.