The advantage to the upside down press is batch management. They drop out the bottom into a vinyl tube (or a chute, or whatever you finagle) into a bucket, and you don't have to periodically empty the lee canister or whatever. You can do 1000's of bullets in a shot.
OP, check out the LEE classic cast formounting upside down. It has a large throw, good leverage, low price, and is ideal for bullet sizing. Much more IMO than a hand press which I would worry about breaking (maybe an unfounded worry, but the classic cast will not break)