Ironically, just yesterday (2/10/2014) a used Marilyn translite sold on eBay for almost $350. Bidding was very active toward the end of the auction!
There has been a NOS Lola translite on eBay for quite a while for $130:
ebay.com link: TAXI By WILLIAMS 1988 ORIGINAL NOS PINBALL MACHINE TRANSLITE BACKGLASS ART SHEET