One lamp featured was a "mini Tizio". I bought the full-size one many, many years ago. (E.g. uses a Halogen bulb.) This article prompted me to think... So I just Goolged it. My vintage Tizio is now selling for about $1,200. (Cannot remember what I spent, but very likely my <$150 filter kicked in when buying.) So if you like these lights, maybe consider the cost an investment. If after a few decades you may want to sell, and you might do well. Note: My Tizio is not for sale as it is a superb desk lamp.
I'll note that many of the glass blocks they use are available all over, for a few dollars. I bought a few Doric glass blocks, stuck some diffused LED strips below them, and printed a stand/enclosure, all for under $15. Good gift for friends.
Really loved the lamps featured here. I'm jealous of the whole setup, including the Vitsoe shelving. Saving this for inspiration when I need to revamp my home setup. Thanks for sharing!