Old loran unit, Lowrance 3400 display

[Snapon24]

I just removed the old Loran off my 340 to make room for a new GPS. Its a Micrologic Mariner loran navigator. Before I throw it out I was just wondering if there was any market for these older units. As far as I know its completely useless but just want to make sure.
Also looking for a new display for my Lowrance 3400 sonar, it works but Its all faded so you cant see it anymore. Anyone have a good used display hanging around or possibly new old stock? Thanks

 

[sbw1]

Loran is coming back according to some government sources. It might work in the future. I always enjoyed using mine although it did seem to lose the signal just when you were counting on it. Could be a little scary in the fog with out radar.