Hey Hugh,
That's a hard decision...I think I would probably go with the L5240HST. I think more versatility. Definately get the Bobcat style Quick Attach, and possibly a couple rear remotes for future implements. I have not looked...but can you put a backhoe on the M series? Not to say you want a backhoe now...but you never know in the future... Like what Chuck said...I think resale value is not a factor in life's real pleasures...get what YOU really want because you will be happy with your baby and not want to put her up for adoption any time soon.
Also, about writing the check...I am not the kind of person who buys on credit either, but it may be a good way to go in this instance, looking back in hindsight. Really good credit rates thru Kubota, (or whoever...blue, green, red) and...something you don't think about when adding it all up...the insurance for the tractor is probably half the price thru Kubota while paying on credit verses an outside insurance carrier for a paid up tractor. I know and learned...I wrote the check!