We have been using the coins for 3 years now. I have between 15 and 30 of each coin and denomination. My group is age 25-55. We love the coins. I also purchased different colored mana stones for gems. I spent about $400 USD total for the coins and gems and have more than enough for our 8 player group. At lower levels when the guys dont have as much coin you should see how stingy they get when they have to go to their coin pouch and pull out "real" money. If for some reason we get into a 100,000+ gp find then I have them keep track of that on paper. That is almost always at higher levels 10+. I have not seen any fading or damage to the coins. They are holding up well. In the long run the coins are more than worth it, in my opinion.