Dave, you lost me with the $60 caliber conversion and the fact it isn't practical to load small quantities on a progressive.
The sixty dollar caliber conversions include the die set. Using your numbers and a lee die set, that's $33 plus $25 for 58 bucks, then add shipping to my door, so about 60 bucks.
To add another caliber to my Hornady is $23 for a shell plate and $10 for bushings and to add another caliber to a LoadMaster is $11 for a turret and $21 for a shell plate.
For the turret press, the cost is $10 for a turret and $25 for the dies, for a total of $35 plus shipping to my door. Not a big savings for a single die set, but when you multiply that times 30 guns: 58-35=23X30=690, that's enough money to pay for the turret press and have at least $440 left over. I can buy several nice milsurps with that money.
It only takes about 2-5 minutes to change calibers on the LoadMaster or the Hornady depending whether you have to change the primer size.
I know, I own a Lock N Load.
Twice a week I shoot between 100-300 rounds of .40 S&W and 9 mm so I may load 50 rounds of one caliber and switch then switch to the other and load 50 to 100 more within an hour.
You're still in high volume mode, but later on, you may find you're not shooting as much of any individual caliber, but have many more firearms and may want more variety for less costs. That's when the turret comes in nicely.
"The only thing I load on my single stage press is my 30-06 and 22-250 which get maybe 200 rounds a year through them and I load that in couple hours.
That's what I'm using the turret for, except it isn't taking me a couple hours and I do it way more often, but always for 20 cartridges or so. The nice thing about the turret is it's doing well at loading accurate rifle cartridges and giving me a quick low volume load cheap.
"Therefore, I don't really see the need for a turret press especially if you own a progressive or think you might want a progressive. Sorry, but I view the turret press kind of like the Shop Smith of tools; they're okay for the the reloader that may occasionally load a moderate volume of ammo, but if you load thousands of rounds a year I don't see the benefit of having one.
Not everyone loads thousands of rounds a year. I sometimes load 3000 at one setting and sometimes I load 20 of this, 20 of that for 30 rifles. I'd rather spend that 400 or so I saved above on the less expensive press changeover on reloading components for my 30 rifles.
"I don't even shoot competitive and I have already ran 10,000 rounds through my progressive since I bought it in October which definitely doesn't make me a turret canidate."
Obviously, you feel strongly about this. I don't know how many firearms you own, but when they start getting up there in quantity, it costs a good bit to support them. I don't know what you make, but my budget for firearms extraneous expenditures is limited. So I tend to be real tight with letting loose of a dollar. Also, you forget the big rule: He who dies with the most toys wins. The Lee Classic Turret is a fantastic little toy, as is their Classic Cast single stage.
BTW, great choice in a progressive.