For those of you who are fortunate enough to still have the older style marquee and canopies with the hundreds of light bulbs, there is an alternative that could save you big bucks.
This company has direct replacement LED light bulbs that look just like clear incandescent bulbs, but are LED. LED's are cool to the touch, they never burn out, and cost a fraction of the cost to light compared to incandescents and fluorescents. They are more costly up front but would pay for themselves in a couple of years in energy savings. And since they last forever, you won't have to get up on the roof or your tall ladders anymore or have ugly spots where lights are burned out. The light output more closely mimics incandescent than fluorescent too. You can also get them in any color to add a modern twist on an old concept.
Here's a link to their website, but they don't have pictures of these particular bulbs. I've got pics- just e-mail me and I'll send them to you. This is the only company that I've found who has light bulb replacements that actually LOOK like light bulbs AND they are about 1/2 the price of other LED "light bulb replacements" at $12 ea or less in bulk.
www.ledeffects.com
This company is the leader in custom LED displays and they do a lot of work for Vegas and new theater builds. They can also reproduce neon using LED strips.