I have a few Colt revolvers(Pythons and a Diamondback).I really enjoy shooting them,but realise that if anything broke,you are on youre own.There are no "qualified" revolversmiths in Canada for Colts.Colt revolvers are notoriously difficult to work on,and parts are becoming more and more scarce.
For this reason,if you want to get a beautiful example of old world craftmanship and only shoot it occasionally,then get a Colt.If you want a gun to shoot a lot,get a Smith or Ruger.Parts are plentiful,and there are a few good gunsmiths who know what they are doing with them,I can recommend Murray Charlton(at least out west here)