As you say, you are comparing apples to oranges. You need to look at the value, you get for your money. For example, the Mandriva PowerPack included the licensed LinDVD software, which alone is about 40 EUR worth. And if you choose the PowerPack subscription, you even get two editions for 59 EUR! See the prices in the Mandriva store:
Powerpack Subscription (1 year) 59,00-EUR TTC.
Mandriva Linux Powerpack 2008 Spring Box version 69,00-EUR TTC.
Mandriva Linux Powerpack 2008 Spring Download version 49,00-EUR TTC.
Mandriva Linux Powerpack 2008 Spring Slim Pack 2 DVD version 59,00-EUR TTC.
-> http://store.mandriva.com/index.php?curren...ucts_sort_order
Btw, your comparison is also wrong, because Windows editions have a much longer product lifecycle. I buy every Mandriva edition since Mandriva 9.0. Windows XP was introduced in late 2001. Since then, I have bought 12 PowerPack editions if I have not counted wrong now. So I had much more to pay for Mandriva than for Windows XP which came pre-installed with my notebook, but Mandriva is much more than just an operating system.
If you don't want to pay, you can choose Mandriva 2008 Spring free or other distributions like OpenSUSE, Ubuntu or Feodora, although I personally think that Mandriva is superior to all these distributions. Nevertheless, nothing is for free, and someone has to pay for it so that you can have it for free. And if no-one would pay for it, you could not have it for free. Think about it! :)