We have a plethora of LDs in the warehouse. I went through our stack of LD players a while back and weeded out the ones that did not work. We have 3 working ones that I know of. We also have a Sony G90 in mint condition and a Faroudja processor as well. If I had the time and motivation, I would have that G90 in my house. :P
I did clean it up and turn it on last summer. An HDMI 1.4 card can be had for about $350.

I pulled a client's LD player out last year and had it serviced and repaired so he could continue to use it. My guess is that is has not been used since. :P