$30 for a 1.1 lb roll of the only material the thing will work with.
They aren’t exactly giving the thing away and what it can do is amazing but the consumables are awfully steeply priced for corn starch plastic.
Dremel does the same as so many others, their consumables are expensive. Even for their grinding tools.
Just like paper printers where the user cost is mainly in the ink/toner, the cost of the 3-D printers may also be in the consumables.