I don't regret selling any of them. With that being said, I have not sold too many. I really enjoy buying them and fine tuning them. Squeezing the most precision out of them. I've gotten lucky this year and out of the 10 or so rifles I've bought, I have made them all shoot well within 1 moa at 100 yards. When I have sold a rifle, it is generally when a friend has a need for one, so I know it is going to a good home. Eventually there comes a time in your life when you are doing more selling than buying. I'm still in the buying and enjoying time of life. Things will change as you get older, maybe forcing you to sell some or all of your collection. Lets just hope that time is far from now....
