Do Modern PCs Need Swap Space?

chill asks: "The price of RAM has plummeted lately. On Price Watch I've seen 256 Mb PC-133 DIMMs for as little as $16 + shipping. Now that every machine I own has 768 Mb - 1.5 Gb of RAM, the question arises -- do I -need- swap space? I'm not talking about running large databases or enterprise machines, but the home PC/Workstation -- word processing, spreadsheets, presentations, some minor coding and that sort of thing." With memory so cheap, there is reason to wonder about the necessity of swap. Does a machine with 1-2G of RAM really NEED swap space if they are not running intensive software? Have any of you seen machines in production with the swap explicitly turned off?