flipping tires on rim, worth it?

[James Creasy <jcre@pacbell.net>]

does anyone have an idea of how much longer my tires will last if i flip
them inside out?  kumhos.

ive been quoted cost from $25/tire (autooptions) and $17.50 (big o).

im looking at about $6-7 per run, so i would need to get $100/6 = 16 more
runs out of them to break even.  is this likely???  or maybe i should do
just the rears??

-James Creasy
Slip Angle Cobrasports www.klio.net/cobra
BAPOC www.klio.net/probe