My wife calls me photographic equipment collector instead of photographer.
1999: my first SLR EOS Élan IIE with a kit lens while in grad school.
2002: EOS 1v, 28-70, 550EX, Gitzo tripod, B1 ball head after working as an engineer for two years.
2003: 50 1.4
2005: 20D, 16-35 (on 20D most of the time)
2007: 70-200 2.8 IS
2009: 100 2.8L IS Macro
2012: 5D3, 70-200 2.8 II, 660EX-RT, 40 pancake, sold 70-200 IS I and 550 EX
2013: maybe a 50 1.4 IS, 24-70 II or a second RT flash.
Then I should be set for a while.