anthony braxton's arista albums are long out of print. they are, however, for the record collector, not all that hard to find; and more often than not, not too expensive. but over the years i have watched the prices of these albums go up. every time i come across one of these albums i buy it. i have quite a few of them. and there are a lot. and they are all really really good.
mosaic records put out the whole catalog. oh-m-g.
here's a link to a magical place where you can download the box set.