Gene...I have purchased many older chips from the cages of many LV casinos. The old Aladdin was one of the casinos that always had great cage people that would sell you what they had at face. The Riveria was another until a few years ago. You would be suprised what they would be glad to get rid if you ask. It's a lot tougher now than it was 5-10 years ago, but every once in awhile I still get lucky. It's dosen't hurt to toke them for what your buying & then ask.
Rich Figarotta R-1593