Well, Pentiums are interesting chips (on the ix86 market), but the reason why you have to try hard to find a Pentium box to buy is that Intel stopped production.

So, if you only want Intel x86 chips (yes, some do), and Intel'd stop producing PII/Cel, what would you buy? yupp. A company with a "good name"'s way to sell their latest chips: Just stop selling the older ones.

And yes, this will all change while AMD/whatever's reputation raises. But, for example, I haven't seen even a single AMD tv spot here in Germany. Intel does. And geeks are a minority in PC buyers.