I think we need to acknowledge that the Lingo 4 that is the current version of the Lingo is far beyond the earlier versions in terms of Musicality. If you are considering buying a used Lingo version 1 through 3, do not give any more than $700-$900 because the Lingo 4 is 80% of the musicality performance jump of the much more expensive Radikal upgrade. The Lingo 4 is $2100 and transformed my Lingo 1 into a very serious analog front end not to mention that every blessed one of my records have an openness and musicality to a degree that just wasn't there before.
You will NOT have the same TT as you did before when you move up to the version 4.
I wasn't expecting this kind of improvement without having to buy the Radikal.
And you get a new motor with the Lingo 4.