For $200 you can buy the Tubes Clock by B&W, they’re selling LCDs inside little tubes for the nixie effect or you can buy your own *real* nixie tube clock kits for $150 or less and learn about building electronics. Here are a few of the kit makers to check out…
Tube Hobby, Nixie clocks & kits for collectors and designers – Link.
Nixie Tube Clock – The GeekKlok – Link.
IN14 Nixie clock kit – Link.