Doesn't surprise me. The mining "business" has been consolidating for years! As it gets tougher and tougher for regular folks or new entrants to join the mining market the need to buy machines goes down, this will directly lead to some of these suppliers going out of business. It's the natural way of business! You can always look for these machines on the secondary market...
Obviously that's the way that business works. Until this point I was under the impression that ASICMiner's products had been in reasonably high demand. It'd be shame if they went out of business. As far as buying their machines used I don't think their BE200 based products are profitable to run anymore, aside from maybe the Prisma