You can tell what market segment the Celeron is aimed at, because they never included generation information in the name. I guess knowing what generation that processor is from is too much info for anyone in the Celeron market. I just never understood why they always branded their low-end chips as plain Celeron (not Celeron 2, Celeron 4, Celeron c2, etc..). It makes it hard to determine the value of the processor if you know just little enough to know that a Core 2 is better than a Pentium 4, but what is this Celeron (is it P4 or C2 based)? Is this computer really a good deal?
Personally, I've only ever bought one Celeron-based computer (because another K6-2 laptop just wasn't gonna cut it at the time). Now, I avoid them just because I don't know of any instance where it would be better to go Celeron over Pentium, and certainly never over a cheaper AMD chip.