Just checked.
A 20' truck rented next week from Los Angeles to Austin is $2,805.00
Same truck at same time from Austin to Los Angeles rents for $864.00
That is very telling.
When the oil boom here fell flat on it's butt in 1982, you couldn't find an outgoing u-haul (It looked like the Exodus). People coming in, however, could practically get one for free to bring here from elsewhere.