So I just sold my TZ. I'm buying a few other new pins, so instead of folding it up and storing it (which I could have) I decided not to hoard and offer it up to the pinball community. I didn't really need the money but I got my asking price, it's helping to pay for a new one, and I decided (for me) gets a bit crazy to sit on games if I don't plan on playing them in my rotation.
As for the bubble discussion, it factored in. If A title pins keep rising maybe I was stupid. I personally am happy with what I got, so is the buyer, and personally feel greater risk of prices coming down than going up. LCD games will change the hobby. Older A games will have their place but I think it will settle down on demand. Just IMO.