So a supplier says you can have the latest version of it's product for £49.99 rather than £149.99 and the offer is only available until a fixed date OR the allocated stock runs out. They run out of allocated stock and instead of saying 'tough' they offer the next batch at up to 50% off rrp at launch. Sounds like a fair deal to me.
Oh hang on it's Microsoft, er, Bill can afford it, didn't someone say it's a monopoly ? I also heard they're evil and beta tested 7 on small furry kittens. It's immoral, illegal and shouldn't be allowed, they're not even including a browser lolz!!!!1111 Apple wouldn't do it... *Yawn*
How about instead of moaning about them having a popular offer and selling the pre sale allocation why not just find a supplier who still has allocated units at the 49.99 offer price if you are bothered ? I've ordered one in the last 5 minutes without issue from a well known competitor, if I hadn't been able to i'd be slightly annoyed but i've only myself to blame for not buying it when I spotted the offer. As for Technet/MSDN subs they've given away enough subscriptions for free in the last year or so, they don't seem overly bothered about the subscription pricing for the basic stuff.