Antony got a second Bluetooth laser mouse today and is calling himself poor, so I'd like to show him an actual poor geek's collection of mice:
From left to right: 2x Mitsumi PS/2 scroll mouse, Microsoft Serial-MousePort Mouse 2.0, Gateway (Microsoft) Trekker 2.0A Wheel Mouse, Microsoft Serial Mouse 2.0A, Logitech Serial-MouseMan, and Logitech MouseMan. I can't find the controller card for the InPort bus mouse, so I can't tell if it works or not.
I would like to point out that none of these mice are cordless, optical, or even USB-compliant. The newest one of the lot (the Trekker) is from 1998, and the oldest (the two MouseMan mice) are from 1991. The InPort mouse requires an 8-bit ISA slot for the controller card, and thus can't be used on newer machines that only feature PCI and/or PCI Express.