I'm an incandescent and MV fan but I oftentimes have to use CFLs when I use old incandescent lamps for area lighting. A 300 watt bulb running all night just sends my paycheck straight over to NV Energy. The problem with CFLs is that historically their output has been limited. However I recently picked up a new item at Home Depot, a TCP 68 watt (300 watt equivalent) CFL.
It has a CR of 2700K which is pretty decent as you can see.
I know it's not true incandescent but maybe this technology will preserve some old luminaires, or at least make it affordable for some of us to use gumballs and teardrops for all night area lighting.
Maybe some industrial and municipal users will consider using this mongo size CFL rather than take down classic luminaires.
(There is also a direct retrofit CFL out now for 175 MV luminaires. You don't have to change the ballast or anything, but the color looks more like incandescent than MV.)