Sometimes the invisible hand gives you the finger; I'm willing to wager that in a lot of these cases you end up with massive barriers to entry, and so once a co

Sometimes the invisible hand gives you the finger; I'm willing to wager that in a lot of these cases you end up with massive barriers to entry, and so once a company gets shuttered or pushed out competitively it will take years and years before a suitable replacement appears. Not that I have any good ideas on how to make the subject better.