No color wars. I have no agenda.
I reload shotgun with my MEC9000g - it works ok, but if you are not careful the auto indexing leads to powder and shot spills, ect. I got this one used and it works well enough that I do not see a need to upgrade.
Rifle I load on my RCBS Rockchucker, I do batches of 50-60 at a time and that meets my hunting and shooting needs for .30-06 & .30-30, planning on .308 and moving into 7mm rifle when budget allows.
Pistol reloading, I have a Dillon 550b and have it configured for small primer cartridges. I have quick change tool heads for each caliber, 9mm, and .40SW, future plans would be .223 rifle.
What I like about the 550 is the manual index, I know this slows me down, but it allows me to better control the process. It would be nice to have more stations, at least one more.
I do not think one press fits every need. If I end up needed to do a bunch of case resizing for a unique cartridge, I will need the old Rockchucker. In the future I may need a auto-indexing press for pistol and perhaps higher volume rifle.
If I was going to load a pistol caliber, I would start with the 550b, even if new to reloading. It is not hard to control.
If I was getting started on low volume pistol or rifle, I would go for a single stage or something more manual than the 550b. Used would be best option. If forced to go new I would avoid the big kit, and selectively buy what you need.
Instead of doing the half step to a three or four hole turret press, why not go to the manual index 550b? Save up and wait a few more weeks to save up the money and get a base 550b setup.