What machines are these and any worth getting?

[R8R]

Note:

You will see Juki 5500's and 8700's out there used all the time. They are fast garment machines. The 8700's are a tad stouter, (for thin garment leathers, denim, etc) while the 5500's are race cars. They are fast and light.

You can swap out feed dogs and other parts to make them fit a particular sewing requirement, but none of this is for heavy leather work. It would be like hauling lumber in a Miata.

 

[R8R]

10 minutes ago, DonInReno said:

 

Since you already have a good flatbed machine there’s no advantage to getting any of these.

I would agree. If the 211 was in nice shape, maybe, just to have a vertical bobbin machine set up for different applications if you were jumping back and forth (maybe lighter threads than the other machine, etc) but that thing looks pretty hammered.

Often when a machine is left to rust and rot, it's because it was near the end of it's useful life anyway, or because it was too much of a PITA to fix.