David.
Do you think its money at all ?
In the pre season accommodation bidding, the Tunis tourist authorities have ensured rates and availability are certainly more beneficial to the tour operators bottom line than might be achievable in say Spain- a market now so fragmented by flexible fares consolidators and the hotels click per view web site businesses .
Especially so for the traditional package tour companies taking advantage to grow their business portfolios .
Tunisia has been a popular and exotic destination for Brits since the sixties . Oh and much of the time the general public forget and indeed a significant portion remain in a perpetual state of ignorant bliss of past criminal activity.
Combined with favourably priced packages peop’s can be persuaded to quickly return to many markets ,its happened many times.
From a business point of view thats a perfect cocktail and recipe to make rather quick money and margin .
Hence the gradual ramp up of flights to serve the package businesses.
Interestingly through Tunisair’s commercial services to the capital aren’t doing so well indeed they have completely mismanaged their London operations.
Enfidha and Monastir, along with the island of Djerba are the holiday airports of choice, Tunis rather less so
Don't think its rocket science myself.