It is implied that part of the heavy price tag is the merchandise valued at $348.80.

The breakdown of the individual merchandise prices per the Walt Disney World gift department is as follows:

Rebel Data Card Lanyard $9.99
Imperial Security Cap $24.95
Imperial Security Rank Magnet $9.99
Imperial Security Satchel $29.99
Personalized Rebel Utility Blanket $28.99
Empire Recruitment Posters $33.99
LED Empire Door Banner $81.99
Kanan’s Lightsaber $24.95
Personalized Medal of Bravery $53.99
Holocron $27.99
Star Wars Rebel Journal $17.99
Rebel Diversion Tattoos $3.99

Still a high price by comparison to other available park or dining expereinces, but the merchandise, plus the two Resort Room set-ups, plus a likely restriction in Supply appear to be how they arrived at the listed price point.