Ok its time for some maths - I know a few posters have tried to figure this out but here is my stab. Feel free to point out any mistakes or inaccuracies, lets be constructive and suss this out. EC's will always be one tenth of a cent I believe. So at the current market rate of 2.80 dollars you'll have 2800 EC's per factoid. Now, I believe we started with 8-9 million (lets say 8.5) but obviously its the inflation rate that begins after M3 thats all important, and if I'm right thats set to be 73,000 factoids per months or roughly 880000 per year according to Brian. Now just to keep the number of factoids stable, we would need to use 880000x2800=2.5 billion entry credits per year, or almost 7 million per day. I think its reasonable to say that if you're using more than this, the price has to increase in order to get more entry credits from your factoids. If you use less, then the price must fall.
Now obviously its very early days and speculation is rife, but MalReynolds was estimating a quarter of a million EC's per day. For just that one company. Its plausible but by no means guaranteed that we could have forty companies doing a similar thing, in which case we would have a higher price. Of course its also plausible that some other companies (and there are a few although none are quite as far ahead as factom) will find cheaper ways of anchoring proof of existence into daddy bitcoin's distributed unhackable truth machine.
Thoughts?
Basically I agree. Just one thing: After M3 the price of EC will be chosen/fixed by the federated server if I understand it right. So it won't most likely be 1/10 cent. But it's good, because they have incentive (paid with Factoids) to adjust it in a way to hit the perfect relation between high usage and price.
Regarding potential demand of companies: Tiana Laurence and also David Johnston talked, more between the lines, about potential customers who ask if Factom could handle billions of entries per day. I don't believe we will see that in the next few months but if I should make a bet if it will be about that high numbers somewhere in the future, I would say yes.
What I expect, and I've said it before:
Increasing number of Customers
Increasing demand per customer
And I believe we will see an explosion of EC-demand. And if I'm right, they (federated servers) could set the price for 1 EC to 1/100 of a cent and the Factoid-price still would have to shoot up.