I would be highly suspect that it doesn't include a drop fee. Hopefully it's in the rate. I was quoted $160 or so for a 1-day Galveston to Hobby rate for full-size with the drop fee in the rate. It proved cheaper to rent a car for the duration and leave it at a hotel with free parking than to rent two one ways.
Call back to Enterprise and you might get a different rate. I know we did. One-way HOU to Galveston for a one-day car rental for a fullsize including all taxes and fees for me in May is around $80. The first time I called it was close to $200 to check the same exact date and city-pair.
ETA - I just looked it up and it was just under $80, no drop fee:
Pickup Branch: Return Branch:
HOUSTON HOBBY ARPT GALVESTON
8601 PANAIR ST 5919 BROADWAY ST
HOUSTON, TX 77061-4142 GALVESTON, TX 77551-4306
(713) 645-7222 (409) 740-0700
Car Information:
Type of Car: Full Size
Examples: Chevy Impala, Nissan Altima, Dodge Charger or simi
Holds 5 passengers and 4 luggage
Rate information (all rates in U.S. DOLLARS):
Daily 1 DAY @ 60.44 = 60.44
TEXAS REIMBURSEMENT FEE 1 DAY @ 1.35 = 1.35
* Subtotal = 61.79
CONCESSION RECOVERY FEE 11.11 % = 6.86
SALES TAX 10.00 % = 6.87
HARRIS COUNTY STADIUM TAX 5.00 % = 3.43
Total charges = 78.95
*If you inquired about coverages or additional driver fees, the rates are not reflective in your estimated total. These fees will be added to your contract at the time of pick up. Additional surcharges, local taxes, etc. may apply.
Toll Road Usage Program; click here for more information:
www.htallc.com/enterprise
Following mileage rule applies:
MILEAGE IS UNLIMITED WITHIN THE RENTING STATE
AND BORDERING STATE. IF TRAVELING OUTSIDE OF
THESE STATES, MILEAGE WILL BE AT 200 FREE MILES
PER DAY AND $.25 EACH ADDITIONAL MILE.
Important Pickup Information for Airport Reservations:
COUNTER IS IN THE TERMINAL. A SHUTTLE WILL BE PROVIDED
TO OUR OFFSITE LOCATION.