'Tis but thy name that is my enemy;--
Thou art thyself, though not a Montague.
What's Montague? It is nor hand, nor foot,
Nor arm, nor face, nor any other part
Belonging to a man. O, be some other name!
What's in a name? that which we call a rose
By any other name would smell as sweet;
So Romeo would, were he not Romeo call'd,
Retain that dear perfection which he owes
Without that title:--Romeo, doff thy name;
And for that name, which is no part of thee,
Take all myself.
In other words, who cares what they call it? I do think Core is most inane name they could up with, but it wouldn't prevent me from buying it. It's like GM naming their next car "engine".
As far as the Pentium name going away, that's wrong. They actually intended to kill it after the Pentium III++ (aka Core 2) came out, and then decided to add the name back into the mix.
Pentium sounds more high end than something so prosaic as "Core". Core sounds like a workman like processor that might not be the fastest, but gets it done. Pentium sounds more regal, maybe because it sounds like Penultimate. I guess the Pentium 4 kind of left a bad taste in people's mouth though.
They still sell Celeron, but it doesn't sell well anymore. The name sounds too much like a non-nutritive vegetable anyway. I don't know how they expected people to think "Celerity". Most people haven't even been exposed to that word. But most have been to Celery, sadly, and maybe even whacked for not wanting to eat it as a kid.