You can probably make some money in the end with chips and collectibles as an investment. I have several different types of collections and finding a true worth is hard to do. They are only worth what someone will pay for them. The problem with chips is that you probably should not put them in play if they are for investment purposes. All the chips in my collection go into play so for me they are definitely not an investment.
I do know if I sold off my collection I would most definitely make a profit but that is not what I purchased them for. I know I have some spotted birds that I paid face value for and others that I paid more for. I thought I was crazy at the time I purchased them but did it anyway for my collection and bird sanctuary. I have racks of chips from the 1970s and I recently saw them go up for sale for way more than I paid for mine. The rack of Spotted birds are from 2010 and those are going for more than $1,000 a rack.
I guess some racks are like stocks, some will pull you a good ROI while others will leave you ready to sell off. I could go on but if you have money to invest do it with real estate. That is where the best ROIs come from and one of the leading causes of becoming a millionaire. Chips on the other hand, not so much. Bottom line is to collect chips and enjoy them!
By the way, I am really not a Chipes Exbert!