At first look it looks really cool. The main issue is how do you pronounce it in a way that when you say it, people don't go home and type in zided.com? Also the "ed" makes it past tense (even if it's a made up word .. lol), so that also hurts your ability to find a user (Xide.com would have been a great one IMO).
Still .. some start-ups are looking for cool off-spellings. Anything but a .com I'd say was worthless, but it is a (technically) pronounceable 5 letter .com that starts with an X (one of the "cool" letters ... lol). X-i-ded sounds a bit like excited, but you'd have needed the 3rd letter to be a T to really take advantage of that.
I wouldn't pay much for it, but I think it might just make it over the drop/keep line into keep. But only slightly .. you really have to wait for an end user to even make a small amount on this one ... and even then it's a risk. But if someone offers you $80 in 3 years, then you've doubled your money ... in the end it will really depend on the overall market .. if gTDL's grow to critical mass in terms of general acceptance then I think this is the type of domain that will really suffer.