spractive- I am one of the very few happy ET holders as I bought in the original issue, and sold half when they doubled so am not losing. And I still have unlimited free usage - which I use about 3x per decade!
That said, according to the original projections my ET holding should now be more than ny total net worth.
As to ET's value - I long since wrote it off mentally when I realised it could not pay interest, let alone debt. IMHO, if it were a conventional UK co. it would have been in receivership ages ago, but it is just possible that it will survive due to the Fenech and the treaty.
New investment - strictly punting money IMHO! And there's probably a better punt.