http://www.money.org/blog/posts/2014/july/1/two-rare-casino-chips-sold-at-convention.aspx

http://www.money.org/blog/posts/2014/july/8/casino-chip-gaming-token-collectors-club,-inc-wraps-up-22nd-annual-convention.aspx

http://www.gamingtoday.com/industry/article/47934-75_000_chip_purchase_at_casino_collectible_show#.U8rYHXnQeM-

http://www.coinweek.com/americana/rare-golden-goose-casino-chip-sold-75000/

http://www.jrn.com/ktnv/positively-lv/5-casino-chips-make-a-great-investment--265475781.html

http://www.coinworld.com/news/las-vegas-ccgtcc-convention-numismatics-coin-world-coin-collecting-casino-chips.html

It was also on GoldPrice.com (can't find it right now), Anthony Curtis' Las Vegas Advisor (one of his posts on July 1) and on Gaming Today's Facebook page (which I looked and I don't see it on the page anymore).

BTW, in case you think I just made the last 3 up, I did a copy & paste of what they posted onto a Microsoft Word document. That's the only way I know who posted what!