Is this instant, ground or whole bean coffee? If it is whole bean, what is the grade?
Even if you ship the coffee to a more local person for distribution, there will be further costs for shipping and while I think it would be cool to sample a can of Mbinga instant coffee (I'm assuming the can is instant since I've never seen whole bean coffee sold in such a tin), I'm not sure I'd want to pay that much for it on an on-going basis.
I usually buy Kenya AA+ whole bean coffee from a local roaster for ~ USD $5 for 250g (for comparison, I have to convert to USD and grams since I pay by the pound). All their coffees are single origin and they also sell a Tanzanian peaberry which I haven't tired for slightly more. It costs $12.50 CAD/lb and even if I look to buy organic, fair-trade beans, the Ethiopian Yirgacheffe (which is delicious) sells for $15 CAD/lb which converts to a little over USD $6 for 250g. So $10 for 250g seems a little too high unless this coffee is more special than you have described?
The can is Instant coffee, but the other package is Roasted ground coffee. Getting the coffee to you is my largest cost, at about 2.5USD per 250gms, your local roaster has the advantage of scale which I cannot easily replicate unless I get into a wholesale (A container plus) partnership with a distributor. Locally, Kilimanjaro roasted and ground coffee retails at between 8000 and 15000Tsh per 250gm, equivalent to between 4 and 7.5usd per 250gm. A cup comparison between Mbinga Coffee and Kilimanjaro coffee would have Mbinga coffee being much more agreeable, better tasting and having an unforgetable aroma. Also, while poverty is a bad experience, it forces most farmers in our region to minimize mineral fertilizer application thus the coffee is as close to organic as can be.
You'll also realize your local roaster is selling peaberrry (lowest value coffee) at a price higher than the Kenyan Coffee, which should say a lot about Tanzanian Coffee. I do not have much experience with Ethiopian coffee names but do like drinking the traditional Ethiopian coffee (Ethiopian food is awesome, followed by their elaborate coffee ceremony and then finished off with Honey wine). I'd say that while Ethiopian coffee, including the herbs used along with it, is really good, Mbinga coffee has a testament of its own without any additives whatsoever.
We currently only package ground coffee and instant coffee, though my current focus is on selling the ground bean (never really liked instant coffee). With an expanded market and demand we my also start to package roasted AA bean, to be followed later by the new types of prepacked single cup coffee's found in the current market.
The actual price of the coffee is 7.5$ US, plus shipping costs which amounts to 10$ US.