"...it'll be awhile yet before that's the case, but-" God it'll hurt his pride in no small way, but he might need it before he's ready to call it quits. "...Thanks, Jim."

It's hard, he knows this is hard, planning for it has been hard- "...Leav'n this place to you won't do much of anything, will it? I know you don't care for earth the same way I do."

Having a home with his feet on the ground- that doesn't matter to Jim the way it matters to Leonard. All this house might become instead of a place of refuge is a tomb to bitter memory.