The break in point for mining now is pretty well 1THs...anything less than that is a complete waste of time and money.
Is there any way to tell how long that will last or is it just a crapshoot? In other words, if I had a 1TH miner today it would still be profitable, but could this not be the case in say a month from now?
It will changes because the difficulty will go up and more hash power is being added. Its hard to 'predict'.
By the end of the summer your gonna want around 5THs.
Damn! This seems like a real gamble as it is pretty much impossible to accurately predict a ROI.
I'm new to all this but I'm thinking I will just build a rig with lower power nVidia cards for Scrypt mining since at least the computer can be used for other things and would hold some resale value.
I guess Bitcoin mining will eventually just be done by gigantic mining farms then huh?