@eliaslar
I appreciate your commentary and good will, yes such indigenous attempts to wholly or partially produce a new platform (tank, plane etc) is costly at the beginning, sure billions of dolars will be spent until the fruition of a product but these projects are not attempted without a feasibility/gain/loss analysis.
Such projects only get the go ahead when a comprehensive analysis of the products benefits are done and this includes the economic costs and gains of it too.
Acknowledging that the international tank market is already saturated with mainly American, Russian and German products i do not find it hard to see the export potential of a new Turkish tank to be marginal, however this still does not mean that economic benefits of such a product will be nill, there will always be export potentials existing to other Turkish countries like, Azerbaijan, Kazakistan, Turkmenistan, Uzbekistan, Kirgizishtan. Not to mention markets like Pakistan, Egypt, Jordan. Pakistan military already been a co-client in the new Turkish frigate.
Besides the initial costs of such a project will be negligable when the secondary gains it will provide to the Turkish state and civil manufacturing sectors due to this and such projects, I'm sure the 800+ billion dollar GDP economy of Turkiye will benefit more with such projects in the long run, not to mention the gains in the Turkish militarys indigenous techonological capabilities. Its all for the better.
Cheers.