だって、ルームサービス頼んだら3000円くらいぶっ飛んでいくんだもん！
コンビニなら1000円くらいだし！(笑)
ちなみにＰさんは一度帰って翌日合流です

Well, come on, we'd have blown ¥3000 if we'd ordered room service! It's only about ¥1000 at the convenience store! :-)

By the way, P-san went back at one point and joined us the next day.