I was going to say I'm in the 'never sell one of your guns' camp but I just realized almost all my guns were bought used.
That is, if somebody hadn't decided to try something new at the expense of something old I'd have a really, really small collection.
So good on you. Variety just might be the spice of life.
For what it's worth the salesman at my local gun store is VERY enthusiastic about the CZ 452 rifles-claims their accuracy is superb.