Aqua Teen is their longest running and most popular show? Do you mean that because you aren't old enough to remember Space Ghost?
Space Ghost C2C April 1994 - May 2008 (15 years)
ATHF/USP1 December 2000 - July 2011 (12 years, season 9/year 13 pending)
Pretty sure SG is their longest running property. I know more people that know about SG than MS (much less Frylock and Meatwad), especially since there was this thing called Cartoon Planet back in the 90s, which was little more than a children's version of SGC2C sans guests. The Aqua Teens/Unit may have gotten a movie, but did/do they have three different tv series utilizing the same stable of characters? Did any of the Aqua Teens attend the ATHFCMFFT premier? The answer to both of those is no. But in the case of Space Ghost, the answer is an emphatic yes.
Seriously, calm down. Everyone is getting screwed with [as] choices for production of dvd/blu-ray. The final season of SGC2C, the majority of the second and entire third season of Moral Orel have yet to ever be put on a disc. Its cheaper to buy the VB S4 blu-ray than the two dvds, but most people don't have a blu-ray player because it is an unnecessary commodity that's replacing something that was itself a replacement within the past decade - I remember a time when I could choose between VHS and DVD and HDDVD and Blu-ray... suddenly half of those choices are gone because ignorant consumers with too much expendable capital drive the market.
Seriously, WTF indeed, but not at the lack of an ATHF/AUPS1 blu-ray, instead WTF at the person so upset it doesn't exist that he gets online to demand it. WHY? Why do you need the Aqua Teens in HD? Need an accurate fry count? Wondering just how sexy Carl's sweaty tanktop is? OH! Perhaps there's some grit on Meatwad the creators have always secretly upset you couldn't notice due to subpar broadcasting definitions.
And what crappy shows are getting blu-ray releases from [as]? Sure, the VB fans make the show (outside of its airing) unbearable, but it isn't a crappy show. You must be, then, referring to Metalocalypse or Robot Chicken. Metal has the same problem as VB: a rabid fan base. And in the case of Robot Chicken, I'm pretty sure Seth Green is a big enough name to sell a few slightly more expensive discs. I know people that have never seen/heard of Robot Chicken that could tell me more about Seth Green than I could tell you about pretentious literature. That said, I can say for a fact, that most people I know that love ATHF/AUPS1 to the point you do (if not more so) are usually the kind of people too high to remember their shift at Subway started 30 minutes ago. So, cater to people that lounge around and try to not spend money, or market to the people clamoring for mass consumption... And now I just realized why I don't own an HDDVD.
History is a nightmare from which I am trying awake.