Cheap Nixie Tube Power Supply

I've seen several nixie tube projects out there where people have spent unfortunate amounts of money on DC-DC converters or other regulated supplies, just to get the +170V DC anode supply. I would like to point out that a 1N4007 and a 10uF cap, and good old 120V 60Hz would do the job. The peak swing on line voltage is 120 * sqrt(2) = 169.7; coincidence? I think not! Also, persistence of vision being what it is, (and probably the neon doesn't go dark instantly) even half-wave rectified AC would probably suffice. Besides, the charming retro-flicker could only add to the appeal of those glowy digits, right?