At least in Europe, there are hundreds of shops that have it.

For instance, searching NUC13ANKi3 on amazon.de finds it for EUR 325 + EUR 10 for shipping.

Searching 8 GB DDR4-3200 SODIMM finds them at prices between EUR 19 (no name) and EUR 24 (Kingston or Corsair) + EUR 6 for shipping.

So the total is 325 + 10 + 24 + 24 + 6 = EUR 389 for an Intel NUC Pro with Raptor Lake i3-1315U + 16 GB DRAM, including all taxes and shipping.

A NUC13ANKi7, with Raptor Lake i7-1360P can be found at EUR 600 ... EUR 650. Adding EUR 150 for 64 GB DDR4-3200 makes EUR 750 ... EUR 800.

Minisforum NPB7 is a i7-13700H for $490 USD. No RAM or SSD included.