@mukiha, good point. A wise old teacher, when he let his mind wander, spoke thus: "Always find a niche and you have your business"
So in this case, where is the niche? (*even before goodwill)
And with that number of transactions, aren't barriers of entry low for potential competitors?
If the guy is a subdealer with no direct relationship with Safaricom, then goodwill should only cover the offices, or not?
But if you could get another play (property office, cyberbureau etc.) and the MPesa is side business, then many possibilities...