How worthwhile is the Core 2 E8600?

I just noticed on a component pricing website that 8600 is out.

This beast should be overclockable to 4ghz right out of the box with zero tweaking if you set FSB to 400 - I'd love to hear about overclockers out there pushing it to 5ghz. It's even quite affordable (at least in my country) being $100 cheaper than a Q9450 and half the price of a Q9550. But can it still can't compete with a quad?

I have this impression that it represents the final step of an old technology before Nehalem arrives. I think it marks the end of the Wolfdale line but I could be wrong.

I'm seriously considering buying one and holding onto it for years to come instead of going through all that nasty business of upgrading every damn thing next year all over again. Is anyone else planning on replacing their old Pentium 4's and D's with this sucker? I have a 6750 and I certainly want this frigging thing.

It has a new stepping and will probably overclock like hell with that 10x multi. I'm thinking about it carefully. Games still scale far better with MHZ than with cores, especially when using CrossFire/SLI setups. By the time a Quad becomes a 'must' we'll have Sandy Bridge and Bulldozer already. If the next major game release doesn't show any significant (20%+) gains with Quad-Core then I'll go for it.