Um... There are LED replacements for the bulbs that work VERY well and at a fraction of that cost. You can get regular brightness, high brightness and (for some applications) ultra high brightness... and all you have to do is swap the incandescent bulb for the LED-based one. Sorry to be a spoilsport...
http://www.superbrightleds.com/
Addendum: These guys offer a very wide selection of bulb replacements that will do a superior job in a variety of fixtures, whether used front-on, sideways, or whatever. Most of these are NOT available from traditional suppliers like auto stores, JCW, etc. and if you choose the part carefully for the application, it will greatly outperform generic parts-rack stuff.