I think a terret press often appeals to folks who aren't confident enough to move straight to a progressive...or they don't have a safety net.
I was recently asked for advice from a shooting buddy who finally decided it was appropriate for him to get into reloading. After asking questions about what he wanted to accomplish, what concerns he had, and what would be the immediate turn offs for him, I recommended that he start out with the Pro 6000 progressive. Plus I'll be there to show him how to set it up and what to check to safely reload. With six stations, he can have a powder check die and not have to combine die functions
He would have been bored starting with a single stage or a turret. He really didn't want to take up reloading as a hobby but as a hedge against future lack of access to ammo. I could have easily pointed him to a Dillon Square Deal, but for half the price, the Pro 6k was the obvious value choice. It met all his needs, loading only one caliber, without a major initial financial investment.