Pete - Sorry to hear of your issues - But as many are finding out, the hobbyist aspect of the industry has changed and will continue to do so. The best thing to do is learn from your experiences and try other dealers and backyarders until you are happy. It should be a priveldge to sell collectors and enthusiasts with high quality games, but unfortunately, a high percentage of sellers don't see it that way.
It is OK Nino, this is a thought that has been percolating in my head for a while
Like a few others here, I have a collection that is (IMHO) pretty good, I do not NEED to buy anymore games
I know with my own business, it pays to maintain a relationship with your customers, a little respect goes a long way
You are not alone, Pete. There are many unhappy customers that are unfortunate enough to get burnt. The stories are astounding and would be worth collating for a bestseller.
You have a great collection - and there's no reason why you should not add more games. Don't feel discouraged, it is part of the learning process