ams: Okay, I'll accept that Select is not just a set of bugfixes (though nobody's answered my earlier question -- what does Select get me?).
Your 2000/XP comparison is slightly flawed (there were a huge number of under-the-hood changes between the two, for example), though I get what you mean.
As far as paying for Windows is concerned -- I didn't pay for Windows any more than I paid for RISC OS -- both ship with the machines. In the case of Windows, I get free updates (and an -easy- way to install a different OS on there too, but that's a whole other issue). In the case of RISC OS, I have to pay for all but the very minor of updates, and I have to pay for applications which on every other platform ship as part of the OS or are available freely. Sorry, still doesn't sound like a great deal to me.
Am I missing something major here? -- if I am, please tell me