Both are cool! The prices don't seem unreasonable either. Not too many Victorian treadle power tools like that left around anymore and I'm pretty sure that's the first treadle buffer I've seen. Old woodworking tools is my other major hobby pretty much for the same reasons as I like old sewing machines.
Steve I'm pretty sure you could justify them as being needed for making authentic repairs to old sewing machines and their cabinets.
Rodney