Being very optimistic with my calcs, at $2/MH/s-day:
LA3M will reach ROI in 166 days
Blade will reach ROI in 139 days
KNC Titan will reach ROI in 20 days
I have 20 gridseeds and love them, but this worries me.
I am sorry with KNC's current Neptune situation you can not count on an early delivery of the Titan or even possibly an on time delivery so it is impossible to determine what the difficulty will be at launch time thus making a ROI analysis nearly impossible. Pre-orders are a risky business especially when they are 3+ months out, but that is the current environment we live in until miners no longer support funding a companies new ventures and wait until they have products in stock.
Hence why I made it clear that those were very optimisic calcs. But to add to your point, if the ROI of the Titan is significantly lengthened by difficulty spikes, the ROI on these miners would be never occur.
Yeah, I wasn't debating that point since it calcs to >6 months which is never a good sign in the cryptocurrency world, but I didn't want anyone to get too focused on the Titan. KNC is waning as a trusted manufacturer, but to be fair we just entered Q2 which was within their predicted time frame for the Neptune’s release. I hope they deliver and keeping with the past the miner exceeds expectations, but when KNC starts releasing emergency plans: refunds, 3T cloud mining, or a used 3T 28 nm product you get a little worried.