About minimum payouts you can find in our FAQ:
Other companies is selling just computing power. But in cryptocurrency mining difficulty rises constantly. So, from the same hashrate your payout decreases almost weekly and you forced to reinvest your money in order to maintain your payout. But our company reinvest for you and your hashrate rises constantly. In this way we can guaranty you minimum monthly payout.
As for the minimum payouts, how on earth are you going to finance that for all 400 contracts (200 bronze, 100silver and 100 gold)? Also, you have 4 rigs, which means you have very limited hashrate now, and certainly not enough for all contracts. And certainly you won't be able to provide for all contracts in your home (though that is my pre-assumption)
For now I can make up to 5 rigs a day. All parts takes me max 24 h. to get. So after new contract max next day new rig will by up and running. And I have plenty of space for rigs.
Ah, I have no doubt your head is great at analyzing, but it needs to rest at night. If a coin drops dead, you won't notice, or are there other people awake when you are not? One man operation? And can I assume that your datacenter is at home or something, and not an actual datacenter?
It's not one man operation. For now it's 3 people working. For now all rigs are at home. But we are testing some places for stability of electricity and internet. We wont to have everything near us. And we never mine only one coin at a time. So if something goes wrong with one coin we have other coins. So we try to minimize risk.
I don't mind you setting up this service. In fact, go for it. But it's hard to convince people of the quality of your services these days. If you know Bitcointalk forum, then you know it's full of raving idiots that like to yell and scream at everything that smells less then perfect, so be aware of that. Gaining trust is going to be very hard. Do not think I'm one of those raving idiots, because I'm not (though not the smartest at times, I'll admit...) I honestly hope something good will grow out of your startup. Just be careful. With people, opportunities, and with promises you make.
I admit that our service is far from perfect for now. But for us is our goal to make it perfect. And to make it perfect we hope support from community. Because for us client is in the first place. Its our motto.