I just placed an order for two boxes of the Immortals - I'll post a bit of a review when I get my hands on them. Mine will primarily be used in my home-brew fantasy dungeon crawl (likely mixed w/ WF miniatures to allow players to create a unique adventurer, and some quarrelsome baddies).
They look pretty good, and Immortal stated they are the first of a "new line" of plastics they'll be producing.
As much as I love WF - as a gamer now days I'll take whatever I can get. I would be glad to have as many companies producing as much as they can (within a reasonable business plan of course)...we know how fickle miniatures can be. Plenty of companies seem to come and go, so I just collect as much as I can. I do believe that WF could produce a nice box of Hoplites, and sell a sh_t load of them. However, now that number would be dropped a bit (due to competition) so I understand their lack of genuine interest.