The basic Threat license on a Firepower 2110 is "L-FPR2110T-T-1Y". List price is US$2589.40 for one year. "L-FPR2110T-TMC-1Y" is for Threat, Malware and URL Filtering and list price is US$6602.97 for one year.
Contrast that with a Firepower 1010:
$14...