I’m not sure whether all unit prices must be converted to “per 100 count” or not, but it really doesn’t work out well for CFL bulbs (clicky for more dots):
That’s $549.50 per 100 bulbs, if you can’t make it out.
On the shelf below, however, a single-bulb pack priced out to $979 per 100 count, so the 2-pack is definitely a better deal!
The Smell of Molten Projects in the Morning 