All computers were obsolete when they were delivered
In the early 1990's computers were always overpriced and obsolete when they were delivered, it was a given. In those days computers were constantly being improved and brand new models could be obsoleted or overpriced in a matter of weeks.
The fact that the computers were not taken out of their boxes or used was not the fault of IBM (there is no mention of a breached installation contract).
I am a bit confused concerning the bankruptcy and the "new" school district assuming the debt incurred by the "old" school district. It seems that nobody contested the financial arrangements at the time when the "new" district restructured the payments to IBM. The current "new" school district has an obligation to pay IBM for the computers. The district should have budgeted and banked the money for these long deferred payments.