Can it bump to 0.4 btc/share again?
Who knows? When full 200TH hit online then this mine will be delivering highest dividends (for some amount of time) among competition. So if worse AsicMiner can hit >2BTC/share (I know it's not directly comparable) then 0.4 is possible. I think even 1.0 mark is possible.
I dont know if you are purposly deceiving him or just cluless.
This is mining bond which cannot be compared to AsicMiner.
Each share will give 400MH/s. Lets say you buy them at 0.2 BTC per share or 2GH/s per BTC when 200Th will be online.
Even ASICMINER Block Erupter Blade are cheaper than this which everyone with some clue knows they will never return what you pay for them.
I wrote that this cannot be directly comparable. Buying hardware and buying bonds it's another story and also not comparable. So why people pays 10 times more for AsicMiner when they will have same amount of dividends from 200TH mine. For some period of time, investing same amount of BTC into AM and 200TH will give ~3 times more from dividens from later. Do your own math, my maybe wrong though.
EDIT: To be clear, I have both assets.