Chassis with 12 of bc-250 are going for 500- 600 usd right now, i think its a good things if you are ok with dual or triple mining, its a pain to set them up as every one of them is a whole pc together with cpu and memory, i hope there is more support from mining software for these, maybe some tweak like amdmemtweaks setting, one that im testing right now does 98 mhs ergo stock and 18.5 on kawpow solo mining, ill run some more coins to see how they do, i got 60 of them for 100 CAD a piece and if there is a bit of luck and prices keep rising for a while i think ill turn a profit