I bought my forks for xmas last year. I think I have actually used the forks 5 times and the receiver hitch once or twice.
In retrospect one of the $500 options probably would have been just fine for me.
Maybe in the future will get more use, this past year I have been doing a ton of landscaping/dirt work.
Even thought they are quick attach, still need to dig them out of the shed, not light enough just to pick up by hand when the forks are mounted on the frame etc... A dolly would help that situation though.