I bought a pair of 4 TB SSDs for like $300-350/ea two years ago. I don’t remember exactly.

Around Christmas I tried to order one more. They wanted to above MSRP, like $500. Given the price of everything else I decided to just bite the bullet and do it.

After about a month they canceled my order. Whether that’s because they didn’t actually have one and couldn’t get one, or because they just wanted to wait for the prices to go up further I don’t know.

I went looking again two weeks ago. The exact same drive is back in stock. MSRP is now $1000. Amazon has it “on sale” for $900. Other retailers that often have slightly higher prices are asking $1250.

That’s 3-4x price increase in 2 years.