You do not need to own Deckers. Clear that this is going into the teens near term. Why wouldn't you sell now and, if you believe in the company, buy in at the lower entry point later. So you would have your $7 transaction fee (or whatever) and could book a little loss for taxes.
I agree with being long but not when its going to be dead money for the near future and there will be better entry points than today's sell price in the near future. Why am I lying?