I'm not sure what is up with the wacky price, but this one has been on ebay for a long time....I saw it more than a year ago.
Anyway, that guitar is a GL2TA not a GL7TA. You would think for 100K + pricing, one would get the model correct. The white paint is kind of a rare thing, but not enough to command much over the conventional black finish (maybe a grand more, at most, among the collectors). MOST Steinbergers you find are Newburgh models, so that isn't rare either. Brooklyn models are pretty rare, but Newburgh and Nashville certainly are not. Also, for 100K+, replace the damn volume pot.
Guitar is worth, realistically, about 3-4K as it looks like pristine example. I have the evil twin of that guitar in black, and mine is mint, and I have a box of lots of extra parts I bought up when steinberger closed.
These show up on ebay infrequently, but usually with some insane BIN price. There was another black GL2T without the active preamp some guy was trying to get 9K for last year. It disappeared, but I'm sure it wasn't sold at that price.