Guys , check the shelves of your local Home Depot . For real .
Last week I was at HD looking for a specific bulb when I happened across these two 150 Watt bulbs for a couple of Dollars a piece . There were two on the shelf , so I bought two . I'd have bought as many as they had , thinking I'd stepped through some kind of time warp or something , but when I asked the guy in the electrical department he said they are a regular item , being so called "utility" bulbs they aren't subject to any kinds of restrictions .