This WAGAN Power Dome EX 600 Jump Starter and Compressor drops from $174.95 to $104.99 and then to $84.99 afte this $20 mail-in rebate at Tiger Direct. Shipping adds around $12. This is the best price we could find for this emergency kit by $43. It has a 260 PSI air compressor, a 600 cranking amp auto jump starter, built-in AM/FM radio, 5 LED lights, 2 AC outlets and 1 DC outlet and a USB charging port and iPod input. There is no sales tax (except FL, IL, NC, TX, GA, SD and ID).