Open an account with Fedex or UPS to get a discount. The most I've paid from Arizona to the east coast this year is $75, fully insured. I buy and sell a fair number of basses (fickle me) almost all in cases. With a standard 50-52" long box if there's any room at the end, cut the box to fit. It's the length more than anything that increases the rate but all three dimensions matter, quite a bit. Try changing the dimensions in the shipping calculator to see what a little box-cutter finesse might do and you'll start saving some bucks for a few minutes work. Right now UPS has a discount code "easy" that is a nice holiday deal. I just shipped a bass in case for $44 and I've never had a bass arrive damaged unless it was shipped TO me. And bubble wrap around the headstock, please.