Fear not! Seek and find, Knock and a door opens. Without faith, all is lost!
OK, here are a few very good reasons:
10- You work hard and play hard. When you die, the money doesn't go with you.
9- How often are you washing that thing?
8- Alternating 2 jackets will actually extend it's life as you are not constantly using it.
7- Your gray pants will already match the jacket (although a second pair of pants is a good idea)
6- you are traveling and the jacket gets lost or damaged or badly stained by Jim spilling his Chianti on it, now what? You have to buy a full price resort jacket??
5- Two jackets are not excessive
4- A different jacket with different kinds of pockets and insulation levels is a good idea. Your Spyder has too much insulation for temps above 25.
3- Alice says she's likes guys in Gray karbon jackets (well, she didn't say that but I need another point)
2-Your orange jacket and my orange jacket are too much for mere mortals to handle
AND THE #1 REASON:
I will be skiing with you for about 20 days this season, I DO NOT want to see that same damn orange jacket all 20 days, I'll chip in for it!