Quoted from Lermods:

Where are you seeing standards for 6500 and ECLE for low 7s?

Quoted from pcprogrammer:

Wow those really went down in value then? I lost count of the number of 8K offers I had on my RR WOZ, one person said he would do $8,200. So I felt the value of the RR WOZ holds pretty decent. In the end I used it as part of a trade deal for 2 pins instead of selling it.

Quoted from Nokoro:

This whole discussion reminds me of when I was a kid and bought The Legend of Zelda cartridge for the NES. It was somewhat revolutionary at the time because it used a battery to save your progress instead of a password like other games (e.g., Metroid). I remember when I learned that the battery only had a 5 year life that I expressed frustration to my father. He laughed at me and said that I wouldn't be playing in 5 years anyway. Sure enough, after a few months, I had conquered both the main and secondary quests multiple times and moved on to other games. Later in life, I was able to download the original The Legend of Zelda and play again. People's feelings change, and technology has a way of making things happen.
Right now, I say WOZ will never leave my collection, but I have no idea how I'll feel in 5 years. At some point, all versions of the boards will stop working and replacements will be needed. Someone will offer something. I was more concerned with the USB dongle that has an encrypted code that you need to run the software. I remember asking about it in another thread and wondering how the pin would function if that dongle stopped working and JJP was out of business. I believe Lloyd responded and said something like, "the pinball community is full of creative people." There are a ton of WOZs out there owned by home collectors that will be kept in pristine condition. It is one of the greatest machines. There will be demand for it in the future, and somehow, people will find a way to have replacement parts.