I think I bought that very surface plate after seeing it listed on craigslist. Rented a double-axle uhaul trailer and unloaded it with my cherry picker (and collapsed one of the casters in the process). I wanted a welding table for my new (to me) garage.
Last time I had to replace a Proto tool, I took it to Grainger (where I bought it) and they gave me a hard time about it and told me Proto assesses the tools for warranty replacement on a case-by-case basis. I was shocked...