Snow Tires or Not?

[SoCal_M3]

I'm using 20s for daily drive and have my 19's for mountain ski trips.

Not sure what I should do for tires.

Options
1) Stick with Michelin Touring HP's (all season) and use cables when snow's on the ground
2) Sell the Michelins and buy focused snow tires like the Pirelli Scorpion Ice and Snow RFT @ ~$250 each (might not be so great when it's dry?)
3) Sell the Michelins and buy performance winter/snow tire like the Bridgestone Blizzak LM-25 RFT at ~$340 each

Thoughts?

Anyone in southern CA interested in buying my 19" 255/50/19 OEM Michelins w/ about 150 miles on them?