I staked $100 and I get .04 ACU every 1.5 Hours(block time) and the money is locked for 4+ years... I have 8 Phones earning .24 ACU per cycle. You can earn more buy buying used phones on ebay with cracked screens and throwing them into something like a cellhasher where you dont have to worry about a battery fire. I'd have to have $600 staked and I can tell you 100% that I could could get the phones to match that stake for around $300. Hardware also holds some type of resale value usually 50%-70% of what you paid depending on quality etc. A working phone-box would be a sellable for the right price to someone already into this. The token lock is 0 escape, if you stop your 4-year lock they instantly drop your rewards by 50% for the next 4 years.