Satoshi Labs Guide

Key Points

Lab upgrades last 90 days and pay out every hour. A lab upgrade will payout 2160 (24x90) times during its lifetime.
Not all labs are equal. Security and generator are the cheapest/best. Bunker (most expensive) is 8.75% more expensive than Security.
Lab upgrades have no cap. Your Production is limited only by how much you can earn and upgrade expiry.
Labs achieve ROI (return on investment) in approximately 68 days excluding pool payouts. This means you have 22 days of pure profit.
The Creator has stated that in the future payouts may be increased, but will never be decreased.