@s Cheap OS

MacOS does NOT have to be licensed once a year!!!

There is NOT an upgrade annually which is chargeable.

Vista Ultimate £230.00 (PC World - 2 mins ago)

Mac OSX 10.5 £85.00 (Computer Warehouse - 1.75 mins ago)

That makes Vista 2.7 times more expensive than Leopard.

Vista (over 5 years) works out at £46 pa.

Even if you pay full price for MacOS 10.6 in three years that comes to £28.34 pa.

When I went to school (in pre-calculator days) £28.34 was less than £46.00.

Although I accept that after 10 yrs of Brownian maths now continued by his Darling, and the same period of "Truth a la Campbell" - this premise may no longer be true.