Buckman?s examples are good ones. And old-fashioned trading, not one-way downloading, is the best way to root shows out of people?s closets, attics, garages, storage bins.
Example 1: (this hypothetical is in the time before the JTLA 87 spread like wildfire): X has the LA ?87 VHS master. Y has a Cork ?87 VHS master. Both will only trade for like items, and they strike a deal, agreeing only to trade for like items (and agree to consult each other before future trades). Seven months later, X mines out Z, who has the Toronto ?85 VHS master, and they do a three-way trade (same conditions). Nineteen months later, along comes W, who has the Boston ?92 VHS master; another trade is conducted (same conditions). Three years later, Q is found, who has a Dortmund ?89 VHS master, another trade is conducted (same conditions). Because people have stuck to careful one to one trading, like item for like item, there?s now more shows in the pool?in the long run, this benefits everyone. Notice that this hypothetical doesn?t assume (like some do) that it?s OK after three months to mass distribute a show.
Example 2: X has the LA ?87 VHS master, and trades it to A (with the same agreement/conditions listed above), who thinks of himself as generous and ups it on the stateless bit torrent site (or carelessly trades or gives it to someone else to ups it on the stateless bit torrent site). Within a few weeks, 500+ people have downloaded it, without ever conducting a trade. Y has no need to trade the Cork ?87 master; Z has no need to trade the Toronto ?85 master; W has no need to trade the Boston ?92 VHS master; Q has no need to trade the Dortmund ?89 master. Maybe Y, Z, W, and Q trade amongst themselves, but fewer people have the show. Maybe Z and Q are so put off by the downloading climate they decide not to trade at all. Maybe G, who has dozens and dozens of low gen footage, decides not to trade at all. No one else has their shows, and there?s fewer shows in the pool.
Example 3: X has the LA ?87 VHS master, and trades it to Z, who has the Toronto ?85 VHS master (same conditions as in Example 1). After three months, X figures he?s gotten enough trades, and becomes careless, and both shows end up on the stateless bit torrent site for 500 takers to download (without adding anything to the pool). X doesn?t realize that Z also taped the Toronto ?83 video (as well as tons of early TV footage); Z is so put off he decides not to trade any of that stuff out. Y, W, Q, and G have observed what has happened and decide to keep their shows untraded.
u2rulesmyworld is right?while it would be nice to have a porsche handed to one freely, life doesn?t usually work that way. Sometimes you can luck out and find someone who will trade the ?88 Honda for the 2004 Porsche, but that doesn?t happen often. The people who tape shows, who collected for decades and have nice tape/video collections, and who work hard to backtrack and ?find? masters and low gens of older stuff, all put in a lot of hard work, and there?s nothing wrong with them trading like quality for like quality, and trading with conditions if they so choose. Like u2rulesmy world said, it?s not as if there?s not a ton of U2 material available for those who can?t, for whatever reason (choice, circumstances) put in more effort and contributions.