I have a 55 that has a chip along one side of the tank, although it doesn't appear to have created any issues...I'm sure there's always a chance. Is it a flake off, or is there any cracking of the glass? I would be scared to move it and have it spring a leak...but depending where on the tank the chip is I think you ought to be able to either just put some silicon over it to help protect it...or there are some fixes where you silicon some other materials around that section...I guess its just up to you whether you think the chip looks that invasive or not? I saw the chip in my tank and there's no cracking, it doesn't directly touch a seam...so I think it'll be ok, but thats totally a judgement call I think. It also speaks volumes that the tank is up and running right now...
Any way you could get a picture of it for some of the more technical minded folks around here and get their opinion? 250 for a 110gal + Stand and equipment is an AWESOME deal.