I have 96GB of 6000 MT/s. Pcpartpicker says 64GB kits have quadrupled in price since August. So I'm almost surprised it's only 50%.
A year ago, Framework-branded memory for DIY laptops cost, IIRC, 2x Amazon for equivalent specs (not the same modules—the ADATA ones that Framework puts their stickers on are theoretically available retail but in practice complete unobtanium in most countries). Not Apple pricing, but they definitely have some margin to eat into.
Literally bought 96GB (4x24GB) of DDR5 5600Mhz (edit: RDIMM ECC) just 5 days ago, fearing the prices would go up even more moving forward. Paid 1500 EUR for it in total :/ Southern Europe FWIW.
I feel like I got the last chopper out of 'nam buying my G.Skill 256GB 6000MT/s kit when I did. I paid $780 in July and now it's listed at.. $2700, over 300% higher. That and buying a bunch of sticks for some Tyan boards I got on a whim last year with some engineering samples I got working on them.