Why do they purchase from this if others are selling with lower order number and for fewer BTC?
Beats me.
Do the "others" include the option for assembly and hosting etc (even though it's an additional cost)?
I'm buying here because, assuming the chips arrive and Steamboat manages to sort out the fab and hosting etc, it's a reasonable price, no minimum order, and I don't have to host it or deal with shipping and customs etc.
It may not be the cheapest out there, but this deal has that warm fuzzy feel about it and the way Steamboat has conducted himself so far gives me as much confidence as I could get sending complete strangers money!