The convenience of a tumbler will outweigh that of a turret press in a very short time.

My personal preference is RCBS and Redding equipment but I can't knock any of the other makers as I have been using most of my RCBS stuff for over 30 yrs. Never needed to try the others LOL.

On your other decision, good luck! I love the .243 but I have been wanting to try a 7-08 for quite a while. Tough choice.