I bought my 42 watt lamps here.
http://www.1000bulbs.com/42-Watt-Compact-Fluorescents/32170/
This is not a cheep lamp. The $1.25 lamps your are talking about are low performance lamps.
42 watt CFLs are extreme overkill. I use 13 watt in most of my light fixtures and the light output after 20 seconds of being on is near identical to a 60 or 75 watt regular bulb. 42 watt CFLs are equiv to around 200 watt lightning, which 99% of homes do not need (although I’ll admit many do).