yello said:Okay, around in circles we go! 2.5 years? That's a 305/205 then. So NOT really a GPS like the OP is asking for, i.e. one with auto-routing capability. The Edge with auto-routing, the 705 is by not "cheap as chips", as the OP asked for.
As for battery life, I think we are at cross purposes. How long does your Edge last from switching on to running out of batteries? Then you have to find somewhere to plug in to recharge it! (Unless you have a PowerMonkey kind of thing) Something like the Garmin Legend/Vista/Oregon is auto-routing, has a longer run time before 'recharge' (2 times an Edge in some cases) AND runs on standard AA batteries. Factor in the cost of the 705, and the Legend et al is pretty much a no-brainer preference!
Again, don't get me wrong. The Edge units are brilliant. I have a 305 and love it to bits. I reckon it's brilliant. Personally, I wouldn't use it for touring because I prefer maps. So I wouldn't bother with a GPS at all!
BUT, for the OPs stated requirements, I personally really really don't think an Edge is appropriate.
Yes, it is a 205, I said that in my original post.
I also recommended he look at bikeroutetoaster which has autorouting and is free.
My Edge 205 has never run out of power during a day's touring (8-10 hours). Yes, I do charge it up from the mains at the end of each day.
I don't have experience of the other brands/models being suggested but my suggestion met all the criteria of the OP, other than colour display (which I have never felt I needed).
Thank you.