Well, if your hope was to live for 8-10 years with the new purchase, that means that you are willing to spend 6-8 years with lower-than-bleeding-edge size/resolution (because in 2 years time better gear will be available for the same price). And the screen will definitely be dimmer for the latter half of its full lifetime.

So.. the plan I would suggest, is to step down one tier in size, resolution and price. Buy the best you can find at half the price of the 27" monitor, and plan to replace it 2-3 years later with the same strategy again.

Your overall cost will be less, and you'll always have a nice bright screen, and more cash in hand.

Cheers