there are 2 ways to handle this problem in my opinon one way is to ban it -but with a cach they should anounce that they are baning it about a year before they do it giving the card time to slowly reduce in price that way people who the card wont be hit with as much shock. the other way is that make a really common card that you can get maybey even put it in a theam deck, that way just about eevryone can get it not just the rich, it worked with pokemon cacher it should work again.
If precedence takes place Tropical Beach will rotate out in August with the next batch of BW promos. They're also not going to make it a common card. Catcher was reprinted to keep it in the format for another season. Otherwise they would have just left it in Dark Explorers and let it rotate at the end of this season. The secondary market didn't have anything to do with reprinting the card.