797c2 SI What's it worth ????? [5 yrs old]

[sfw1960]

I have a new XDCR (I'm using the old one for my 798ciSI) and a five year old 797c2 SI with the latest S/W that does DI also (6.3, I think) - these tired old eyes don't work as well as they once did, even if the machine works great.....thinkin a beefier screen may help me out a bit.

The trusty old girl never once had a trip to the shop, always stored inside & unmounted when not afield. I do have a 2006 Navionics HotMaps USA / 3000 Lk. maps thru out the country - and depending on what I hear for suggestions, that might have to be the thing that seals the deal,

I posted $450 on another board & no real specifics, and another guy said it was a good deal, that he sold his for that price.....

Just open to a little ideas, it's getting cold in Michigan, and it won't be too long before the water's all locked up!!

Cheers~

Robert