max 300btc if you want any kind of ROI on this
If looking JUST at BTC returns perhaps...
What other returns are you looking at? Serious question.
If you mean merge mining with Namecoin, I didn't think that was especially profitable. Are there any other uses for an ASIC miner like this or an Avalon when they're no longer BTC-profitable?
USD...
300 coins is $30K more or less (today)
If you mine and keep all coins and in 1 year you have 300 coins and that is worth $90,000. A very handsome return....
or you can save 300 coins you have now by not buying it, and they will still be worth the $90,000 later, and the entire year you have those 300 coins you can use them over the course of the year to try and make a better return [ day trading btc-e / bitstamp etc etc ] .