It's not pointless at all actually. There is nothing on our web site to say that the customer will be mining with the same hardware for 5 years.
You quoted the first sentence... If someone sold cloud mining on that Avalon machine a year ago they had to buy it in the first place now it's not worth anything in relation to some new hardware like a Terraminer so no money to upgrade that hardware. If there was more efficient hardware in the future that has no relation to selling a GH/s now 27/06/14. Even if they bought the new future hardware it wouldn't be free would it? and the hardware isn't free to buy now is it? A 800TH/s data center isn't free either.
Hardware goes down in value rapidly meaning there's nothing to pay for the new hardware.
At 0.5w/GH/s efficiency it's over $2 for 5 years for 1GH/s this efficiency doesn't exist yet it's much more.
Electricity alone for your contract in one of the cheapest areas in the world, on efficiency that doesn't exist yet is over you cost per GH/s
You are very limited in your point of view. Maybe (and I say maybe because I don't know how this business model work) they buy hardware for x and sell it for y resulting a profit of y-x=z. The z doesn't all go into profit but a part goes in reinestments, a fund for future upgrades and future expansion, because, as a business you have to think of this parts. You just assume that they all take as profit but I know for shure it doesn't work like that, because I have a business (not btc related) but the principles apply also.