ok, go spend $350 on a jalapeno and message back when you get a ROI.
I only spent $150 on my jalapenos.
Also, don't use a laptop! Use a raspberry pi. They only cost about $50 and draw less than 5 watts!
That's what I'm running too....I gave it to my son as a little way to make some bitcoin for himself.
It makes about 0.01 every other day...still worth running for quite a while.
Even then, what if 0.01 XBT is worth $100 someday? It will have seemed foolish to have turned it off so early.