@lewm ,
Yes, I like my modded SL1200G with Triplanar arm. I also like my Kuzma TT. Two different sounds. Different TTs, arms, cartridges. I use a Manley Steelhead as phonostage for both.
As for the LP12, It looks to be in decent condition. If someone could do it for local pickup, even better. The upgrade path, for the Linn is not real spendy at first.
To really answer your question; We all like a change now and then. Two TTs provide that change for me.