Airport rentals have a zillion surcharges particularly in the southwest.
You got that right. Here's the list of surcharges and taxes added to an Economy rental at Sky Harbor in Phoenix. They add over 51% to the cost. Needless to say, if a Phoenix-based friend can pick me up at the airport, I rent off-site.
1 Week @ $ 282.30 USD $ 282.30 USD
Drop Charge $ 0.00 USD
CUSTOMER FACILITY CHARGE 6.00/DAY $ 42.00 USD
MAINTENANCE FEE 0.70/DAY $ 4.90 USD
CONCESSION RECOVERY FEE 11.11PCT $ 31.91 USD
VEHICLE LICENSE SURCHARGE 5 PCT $ 18.06 USD
STADIUM SURCHARGE $ 11.74 USD
TRANS PRIV TAX $ 37.19 USD
* Total Charges: $ 428.10 USD
Economy car from a Mesa location.
1 Week @ $ 149.99 USD $ 149.99 USD
Subtotal $ 149.99 USD
VEHICLE LICENSE TAX $ 7.50 USD
SPRING TRAINING CACTUS LG TAX $ 4.87 USD
SALES TAX $ 12.07 USD
* Total Charges: $ 174.43 USD