I picked up a Dillon SDB set up for 9mm at a pretty good price. I have never used a Dillon press and have been using a Lyman Spar-T and Lee Pro-1000 and occasionally Rock chuckers for over 25 years. I am considering trading the Dillon for a Lee Load-Master. Am I crazy or should I make the extra investment in new dies & conversions for all the calibers I load?