Apple is celebrating Mac's 30th birthday and a lot has changed over the past thirty years. Inflation is better now than it was in 1984 and the Mac is cheaper. Interest rates are much lower thanks to the Federal Reserve, even if home prices have doubled. Many computer companies like Tandy and Commodore are either gone are gobbled up by others and while Dell and IBM are still around, they are not nearly as competitive. Just surviving in today's computer world is cause for celebration.