PlayStation games like Best of PlayStation Network Vol. 1 skyrocket in price due to PSN shutdown

As Sony shuts down the PS3, PSP and PS Vita PSN stores, games like Best of PlayStation Network Vol. 1 are skyrocketing in price. Sony confirmed in a notice on their website that the digital stores for these consoles will be shut down over the summer, presumably to focus on PS4 and PlayStation 5 instead.  …...