Well Ed. I rather agree with you. A lot of tank should be preserved in Museums or in private collections because they represent not only the history of technic, but also more or less an important piece of Humanity History
On the other hand maybe for the tank museum is better in my humble opinion, to preserve only the most representative exemplars (not for exemple a particular Panzer IV modified by its crew, but an "average type" of PzIV)
In addition, i think the war in former Yugoslavia, despite was over a long time ago, is still perceived here in Eurepe as a terrible war (and actually it was it) that people absolutely want to forget. In my opinion that's a huge mistake, but that's the reason why the remains of that confict are "deleted"
Cheers, and thanks a lot for your comment