In their defense, they've only published a whopping total of one of their games. If you want to bitch about their lack of western focus, blame their publishers up until now (Atlus, Taito, 5PB, and AMI).-Cave stuff doesn't leave Japan. It's just a fact. That's how it goes.
They don't have a US Subsidiary for their games, so releasing one there (or anywhere) isn't so simple.
Developer...not publisher. Slight difference [read: huge difference]. They have only published one game ever (Death Smiles for the 360). All other PCBs and home ports were published by someone else. In fact, they didnt' start publishing their own CDs until ESPGaluda.Its not sad, its the one publisher who has 11 out of the 25 shmups in this year's list. Its the only publisher who has 3 games out or coming out on the 360 (ketsui, Death Smiles, Mushi 1.5) that you cannot play any other way unless you buy a PCB.
How much of the game they own is also in question. My guess is that anything they've done through AMI they can publish themselves w/ no licensing fees to AMI. Anything before that, they were generally the publisher's bitch.