He will... once he checks out the 1050.
There is something extremely seductive about smoothly running machinery.
14 years ago I sold my 550 and bought an RL1050; I still regret it.... as much as I love my 1050 with the bullet feeder I would like to have my 550 for load development and the odd times I reload small quantities of 9x18 or 44 magnum.
That is why you never buy just one 1050. Plus you need a couple of 650-s.
BTW, why not do load development on the 1050?
My 1050 is set up for 38 SC if I have to develop something for my 44MAG it takes some time to change the turret, shellplate, primer system, it would be easier if I still had my 550.