This topic made me look at what the company that built my boat are now charging. I bought mine, a 60x12 widebeam, end of November 2021 (fixed the price to start the build) - delivered in March. I had about £20K of extras put on it (skylight, bow thruster, euro stern + other things). Came to £96K, no VAT. Sailaway lined + additions so I'm fitting the rest of it out myself. The same boat without all the extras is now £98K, so since last November it's gone up £20K. My boat was also was hit with the previous price rise of about £8K so in less than a year and a half, prices have increased for this same boat build of nearly £30K.
It's still cheaper than a house, it's much more of an adventure and the bills are far lower but that'a a crazy hike in the space of a year.