Yes, the Dake is a bit on the high end. These are rated to press 50 ton anywhere along the upper member. It looks like the Grizzly is fixed on center due to the structure needing the load shared equally.
I bought the Cummins Tool 20 ton last year. For $200, I couldn't buy the materials for that much. I liked the idea of the sliding cylinder,internal return spring pressure gage etc. No modified truck jack on this one. Mine came with some press plates to press and bend on. Now I see they are sold seperately. Comparable to some of the better name 10 ton units, but still half the price~!
Cummins 20 ton
I know it isn't 50ton, but then it isn't 3 times the price either. I was impressed, and that is tough with cheap import equipment!
I don't know what the market is for used 50 ton presses. They are sought after quite often, so I'm sure good name brands hold their value.
DC