Well, and also has a bunch of money, not just willing. I guess locally we don't really have that difference, as two other commentators here went by, that's why I had to update my local understanding of "enthusiast". Usually we use it for how engaged/interested a person is, regardless of how much money they can or are willing to use.
Learned something new today at least, so that's cool :)
Yes, when tech gear is sold as 'enthusiast' gear, it is almost invariably the most expensive non-professional tier of equipment. That is roughly the common understanding: Expensive and focused on features more than security required for public use; while remaining within reach of at least some individuals, not only corporations.
In a hobby where there are (strong) HW requirements, it mostly takes for granted you have money to shell out for your hobby, indeed.