When I had the 60-color sets, I sold them for about $100. These were the hot-stamped non-inlaid chips like you show. I have seen them sell higher recently, but there are also new colors that bring the total number to 70+. The new colors are hard to find individually, and may sell for several dollars each if you can find them. I only have dupes of about half the classic colors now.

There are also Paul-son inlaid samples stamped with the color names, but much less common. I only have the one set in my collection, but would think they would retail for $200-300 a set these days.