No problem with the priorities. Just risk management vs. cost management. Security is my business, so I look at risk in relation to cost. I don't usually bother with any alarm system because IMHO, they're all worthless. Not one of them will stop a professional thief. The only reason I got Scion security is because I get a discount on my comprehensive coverage that pays for the alarm over about 5 years. I usually keep my cars 10 years, so it makes economic sense.
I don't drive on icy mountain roads (although I have in the past), but any tire that forces me to reduce speeds to 60% of dry is, IMHO, crap, and a far greater risk of personal injury and death than choosing Scion Security.
The best tires I ever owned were Bridgestone S-02s - I could go 98% of dry speed in full rain around any turn I wanted. They even worked in snow and ice. I wish they hadn't been discontinued. FWIW, I was driving yesterday on my Toyo T1S's at 90 mph in moderate rain with no handling, braking, or turning issues what-so-ever. As it should be.
On topic - I've had no electrical issues with my tC at all. So far it seems most of the electrical issues are related to port/dealer installed options, not the basic harness. I think it's awesome they were able to fix a complete wiring harness in 24 hours, but that could also be scary. Is Scion stocking wiring harnesses? That only means one thing: sufficient demand to make stocking economical. Not what I'd like to hear...