Flight + hotel + rental car + per diem for a 3 day trip can easily add up to more than a month of E-5 w/ under 1 year of service pay.
Month of E-5 pay with under 2 years: $2,203.80 (2015 rates before Taxes)
Calculated for a 3 day trip to NAMI staying at the Navy Gateway Inn and suites with summer per diem rates:
Hotel at Navy gateway inn and suites: $57 a night x 3 = $171
Per diem for Escambia county during summer: $121 a day x 3 = $363
Full size Rental car from on base Enterprise: $40.98 day x 3 = $123 ( Which you might not get anyways. MATSG handles transportation for OCS candidates)
Flight from Anchorage, Alaska to NAS Pensacola = $643 (Biggest variables here based off of travel dates, location, and economy)
Total expense charge for trip: ~ $1300
So, no Spekkio not quite over a month worths of E-5 basic pay, it's actually quite far off, and I didn't even include all of the other stuff an E-5 would probably get, BAS, BAH, plus other incentives every month in NAS Pensacola.