I now understand what is a source of cheap high end FPGAs on AliExpress. Though buying complete board does not make much sense, because it lacks the Golden Top

I now understand what is a source of cheap high end FPGAs on AliExpress. Though buying complete board does not make much sense, because it lacks the Golden Top project with all pin assignments and clocking constraints. This particular Stratix V has tons of logic elements and on chip memory, but applications are still rather limited for it. I did this before too, was curious how chip for $20k looks like :-) My advice: get some board from Digilent, they have examples and active support forum. It will be more useful on the long run.