I just checked again. 16GB DDR5 (291 Euro) to 32GB (519 Euro). Seems right to me and does not match what you reported. Maybe they updated the website by the time I checked.

For the record: When I posted the previous comment, prices at ramtracker were 410ish for 32GB DDR5 (which is realistic) and 380ish for 16GB DDR5 (which is not).

Their price history does not reflect this at all, so I'm not trusting their values one bit.

At best, they changed their complete history to reflect a different product (or basket of products), and while the 16GB-DDR5 category is closer to accurate now, the 32GB is now too high: 32GB of DDR5-6000 can be had for 400ish in the Netherlands (or elsewhere in Europe).