Ah yes....
So they are....
Here's a little email correspondence with them on the topic
Hi NI folks,
I am still running Kompakt. Can I take advantage of the sale crossgrade offer to
Kontakt. If so, what will the price be. I\'d appreciate being offered the same figure
as those upgrading from Kontakt 1-3 because when I purchased Kompakt I had no idea it
would never receive upgrades.
......
Thank you for contacting Native Instruments!
Unfortunately there are no crossgrade options from the old and discontinued
"Kompakt" to "Kontakt 4", you´d have to purchase the full version.
If you have any more questions please don´t hesitate to contact us via this E-Mail!
Well, gosh guys!. I'm so thrilled. When I bought Kompakt it was going to be your standard sample player. Kontakt was for recording samples. All the third party libraries were going to work with Kompakt. Then you dropped it, no upgrades, nothing. So all the modern libraries won't work with it.
You gotta love the customer service. Ah well, guess I won't be spending any money with them. Geez, would it have killed them to offer me the crossgrade price?.