Vintage ephemera in the digital realm

How has the Internet has impacted on vintage collecting? Here is a relevant excerpt from the Wikipedia article on Collecting

"The Internet offers many resources to any collector: personal sites presenting one's collection, online collectible catalogs, dealer/shops websites displaying their merchandise, Internet trading platforms, collector clubs, autograph club, collector forums and collector mailing lists.

Finding retired editions has become much more convenient with the advent of Internet auctions and trading. It has never been easier to track down a retired piece, and to reach out to dozens of dealers using e-mail or their websites. Most retailers tend to focus on one or two specific lines. Their activity in acquiring inventory adds liquidity to the market, and their sales of retired pieces are important to establishing a trend in value that is more consistent than random sales between individuals that may not be meaningfully documented.

The public and dealers alike use Internet auction websites to buy and sell collectibles. The thrill of "winning" an auction, and the convenience of shopping from home have contributed to a shift in volume from in-store sales of retired pieces to auction/mail order sales through such auction sites.

When buying expensive retired pieces, an escrow account for funds transfer may decrease the buyer's chance of losing their money. A form of fraud on the buy side involves swapping a defective piece for a good one bought via auction. In this case, the buyer, who may have a repaired piece, or a slightly defective one, buys a mint condition piece from the edition via auction and ships the defective one to the seller, demanding a refund on the auction. Sellers should record item numbers and other details about the piece before shipping so the seller has the facts they need to avoid this scam."