HP ZR24w vs Dell U2410 - please advise

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Hi,

I just bought HP ZR24w few weeks ago. And I just noticed that the U2410 is going for $499.00. Should I return the HP ZR24w, and get that one instead. Right now on my Eyefintiy setup - I have one HP ZR24w and two Gateway FHD2401. I want to get same monitors for my setup, and since monitors don't go bad, I definitely want them to last a while and have support for upcoming Eyfinity or Nvidia multi-monitor enhancements.

What is the best course of action here. I have literally few days to return my HP, if I have to go that route. Or should i stick with the HP, and get the other two same models.

Please advise,

thanks