Aw, why do you have to ruin my fun?
In all honesty, I still have a valid point about what I mentioned about cutting your losses on equipment. Say you already made 2x ROI or more, you can consider selling used equipment still in demand while they still have high resale value so you can reinvest it in mining hardware. By doing so you've locked in future returns which as we all know are uncertain but trend downwards for older hardware.
You could even just re-invest it in BTC that'll probably do better then the Jally going forward, which will continue to lose value and mining power in a world where 400GH/s are starter units!