Thinking on more.
The higher the marketcap of spreadcoin you would think the higher barrier to entry into spreadnodes.
Say SPR marketcap is $1,000,000,000 - 10,000,000 SPR supply - 1 SPR = $100
The demand for tiny transactions like 0.005($0.50) will be huge. We will need masternodes that have like 0.01spr in them to mix only 0.001 denominations.
We will also need MN's that have hundreds of SPR for larger transactions.
But the masternode network will have to select a node which can handle the transaction size and pay accordingly.
Say you(as a MN operator) only want to denominate 0.001 transactions, you only receive a tiny mining fee because of the small transaction, but the masternode only costs you 0.1SPR($10).
If you store more coins in a wallet and a big fat whale wants to denominate/send a large amount of coins he pays the large node relative to the transaction size (Much more than the 0.001 transaction MN would get paid).
So i can see it being very easy for new people to enter the market for as little as $10 if the market cap was $1 bil.
Depending how many decimal places a masternode can denominate down to, it could theoretically cost penny's to operate a MN!
This will create a huge market place of price discovery as people try to figure out the maximum amount of coins to leave in a wallet! For example, i leave 5spr in a MN but only denominate/process 0.001 transactions. If the MN is profitable enough to justify having 6spr in their, then someone will do it and boot me off. Taking coins out of the system, making my coins more valuable, by the way. But if it become's unprofitable for me to hold 6 coins in one MN to only denominate 0.001 transactions i will withdraw 1-2spr to become more profitable elsewhere, but by me doing this i reduce the barrier to entry.
Does that make sense to anybody? Because i know how bad i am at dicribing something
That's not how Masternodes work.
Your collateral does not ever get mixed/used, it sits safely in your own wallet, preferably not even online. Well actually it lives on the distributed blockchain and your wallet is just the gateway to it, but still. Whatever amount of collateral is required, it has nothing to do with mixing.
Masternodes just co-ordinate and sign transactions for Darksend, and will act as consensus locks for InstantX transactions.