They're ripping you off. Average dealer auction price with your mileage is in the very low 30's... unless your vehicle has massive issues or prior body work.
Note the "BELOW AVERAGE" unit with 97K still brought 28.8... and that auction (Bishop Brothers) is in the ATL :)
---DATE-- --AUCTION-- --TYPE-- --SALE-- --MIL-- --COND--
01/11/07 MANHEIM Regular $37,000 66,914 Above
01/11/07 MANHEIM Regular $31,700 67,186 Avg
01/10/07 NADE Regular $30,800 77,155 Below
01/23/07 FAAO Lease $35,200 85,060 Avg
01/25/07 MANHEIM Regular $36,500 85,067 Above
01/25/07 MANHEIM Regular $33,500 85,984 Avg
01/25/07 MANHEIM Regular $34,500 89,353 Avg
01/23/07 BISHOP B Regular $28,800 97,031 Below