Love when people throw around numbers like "3 month" randomly without any math.

the current difficulty is a little below 5,000,000, which a three module Avalon will produce ~6 BTC a day under these conditions.

Let's see how "3 month" ROI actually looks like.

If difficulty raises to 30,000,000 each three module Avalon will produce 1 BTC a day, enabling a break-even in 90 days.

So yes, if you think we are going to get a 6x difficulty increase between now and May, let's even say June! then by all means, please don't purchase Avalon, because I wouldn't.