Hi Donna
Welcome to the forum and sorry to hear of your husband passing. I couldn't put a figure on it, but you may be the best person to make that judgement based on some confluence of attachment to it and it's market value. As far as market value is concerned you can look at past sales of this telescope and/or its component parts using the IceInSPace Search function in the Classified section archives.
I just did this, searching on
Meade LX200 10 and the results are here.....
http://www.iceinspace.com.au/forum/s...2&pp=25&page=2
There 402 entries over 17pages of various Meade scopes that show up in this search, but market value wise perhaps be guided by obviously the sales of 10 inch LX200 telescopes, but also something in between the value of its smaller and larger brothers, the 8inch and 12inch version as well, as some of those are reported in the search.
Even though your request for help here is for ideas on possible pricing, rather than an advertisement per se, it's not inconceivable that you might get a message with an offer.
Best
JA