love the donate it. Nothing like giving a pipe away and knowing it's going to the cause. Seriously if you don't need the cash there is a great feeling of knowing you're helping a new pipe smoker get off on the right foot.I don't know how you're hitting the road, but I will offer this... I've lived in a travel trailer as well as a semi-truck, a tug boat and several Coast Guard cutters. On each, I've easily been able to keep & carry 10-20 pipes. It's all about space management.
If you do however decide to get rid of pipes I'd ask you consider two things;
1. Which ones do you smoke the most?
2. Do you need to make money off them?
a. If not, you could donate them or gift them.
Just my .02