I started to collect them and then when the skies opened and they poured out literally in the thousands I quit; sold off all and now only collect AC, Harrahs, LV (where I stay) & Opera House. I'm going to put the rest of mine other than a few specials (like the first LE) out for sale and take a bath. Frankly, I cannot see most of them being worth much in the future other than for those with very very limited editions.