It may be that the quality of art sold from 1988 to 1991 was greater than before or since. But, realistically, they show a market driven by speculation that could not be supported indefinitely. Antiquers who have followed the majolica or graniteware markets during the last decade will be familiar with the same phenomenon on a smaller scale. There are many places on line for correspondence on favorite subjects. CompuServe, America Online, and Prodigy have forums for thousands of interests.
Any message posted is immediately available for others of like interest to read and answer.
CompuServe has a well-developed collectibles forum of limited interest to antiquers. Antiques areas on America Online are scattered and hard to find. Mailing lists are easiest to use. Every time you log on to get your E-mail, you also get all the messages from the mailing lists to which you subscribe. Any comment or reply sent to the mailing list administrative site is automatically copied and sent to all other subscribers.