Azeman, its much easier than that. You can completely ignore everyone that posts on here and take the advice of the one person you can completely trust. You, yourself, said "because there's no jobs about". There are no jobs about because there's no work. There are no queues of customers waiting to fly in a seneca (or anything else actually) from the base airfield you brilliantly selected to some other place. No customers at all. And you've already done the research that you need because you've already identified that there's no jobs about. Start an air taxi company when times are booming and lots of people have big disposable incomes.
Ignore all of us but stick with the one person who's advice you should always listen to - you own.
By the way, if you have 2 million quid and want a consultant to help you out, pm me....