Just offer barebones cases is all I ask. I would have bought a X1000 had there been a mobo only option. Partner up with the various camps perhaps to provide fully built options for those that don't wish to build their own.
How cool would it be to be able to buy an A3000 repro case, with your choice of a OS4 PPC board in it, or a FPGA solution, or an AROS capable/certified board in it? The best of all worlds, an absolute dream.
In this day and age, anyone that can use a screwdriver can put a "PC" together inside a case. Though I am fully understanding in the fact that some people prefer to buy prebuilts, so no insult intended towards those folks.
I find prebuilt machines absolutely stifling, and haven't bought one for nearly 20 years.
That way, a Mini-ITX Amiga 1000 or A 3000 "like" case, a guy has a lot more options than just a set build. FPGA or minimig board? Sure! SAM? Sure! Mini-ITX intel/AMD/Atom powered board? Sure! Motherboards come with their own backplane/IO plates for a reason.
I own a lot of PC's, and change mobos between cases very, very often. The joy of standardized mobo dimensions means I could jam any Mini-ITX board into a Mini-ITX capable case, whether it be my SAM board, Minimig, or even a spare x86 Mini ITX board into it.
