Hewlett Packard Notebook wireless card problem

I can consider computer new if it's under the year old, can I? I've been using my HP Pavilion dv6000 for 7 or 8 months when wireless card went crazy. It wouldn't turn on for a few days, when suddenly resurrect for a day and get back to abyss  for weeks.

Research has shown that problem is so common for this particular model (every other person referred to a "cheap crappy parts") that HP decided to bestow upon its unlucky customers a Limited Warranty Service Enhancement (the model list has grown since my last visit :).

But I didn't realize how common this problem, until I sent the notebook for repair. Judging by UPS tracking, the shipment was delivered to HP at 9AM May 15th and I've got my machine back on May 16th morning. So they barely had one workday to deal with my machine. I doubt that my case was handled by a super-dedicated employee who forfeited his coffee breaks in order to make me happy. There were scarcely enough time to even restart Vista couple of times*, forget the diagnostics. So looks like they have some conveyer when they just replace whatever they do, without even turning machines on, and ship them back.

* I wouldn't be so grumpy about HP if they did not force me to buy the preloaded Vista Home in the first place and, even worse, forced me to replace my heavy-loaded XP Pro with the Vista again before the repair. Otherwise they wouldn't even touch it, they said.