I would really like to know.
As far as I can tell the introductory products are not available, and the only way a new player can get started on the tabletop side of things is to get the PDF of Total Warfare, some miniatures from Iron wind metals, and basically have to fend for themselves in terms of map sheets.
Most of the core rules are PDF only which isn't bad per se but it is annoying for people who like hard copies.(of which I am one.)
Map sheets are a problem. The hex packs don't give you much, and the PDFs on Catalyst's web store do not have the full selection. The chaos campaign system pretty much requires you to have a good number of map sheets that have been out of print for what, a decade?
And then there's the core rulebook series, there 10 years old for crying out loud! Not to mention a mess, if you want to play Dark Age you're pretty much cross-referencing 4 books. A friend of mine who plays 40K showed some interest in BattleTech, but the state of the introductory products combined with the look on his face when I explained how the core rulebooks work, makes me afraid he might be turned off on BattleTech all together.
Also advertising is almost non-existent for BattleTech. In games trade magazine for the past three years I have seen maybe one or two advertisements for BattleTech, however in every issue I have seen there has been a full-page advertisement for the latest and greatest Shadowrun product.
As the kickstarter for the BattleTech PC game has showed there is a large dormant fan base out there. You'd think Catalyst would be trying to tap into that.
I know I'm not seeing everything, but from what I do see it looks like BattleTech the tabletop wargame has one foot in the grave.
OK rant over now.