age is nt the issue. take a good look at it and the owner. how much work has it done? is that borne out by its physical condition? allow for replaceing wheel bearings, tyres, plastics, plugs, filters, brake pads, oils. with that knowledge is the asking price offering you value and one that you are willing / able to pay.. for a 5 yr old bike most of the depreciation is gone so bargain hard and you wont lose much no matter how long you own it.