No, it woudln't be worth it, trust me, not for that much.
I mean, it adds a few advancements over Winchester but not enough to want to pay that much for it. Especailly since in the shops, its only a few quid more than the Winchester, and so is only meant as a thing to get if you are looking for a new processor now.
·Mismatched DIMM support (ability to configure and use different size DIMMs on the same channel)
·Improved memory mapping (more efficient use of memory space)
·Improved memory loading (can fully populating the memory with double-bank DIMMs with no slow down)
Thats all it adds
Not much really, and considering yours is out of taking back now and you'd have to pay the full amount again, its just not worth it...
Do you think its worth it after looking at that list? I doubt it...
I hope this helps