Worth making a meal with 〜甲斐がある
Grammar Explanation: Worth it with 〜甲斐がある

Rintaro’s mother is overjoyed when her son has friends over for the first time in his life. She prepares a large meal for them to eat.
- 絢斗:
- 「すごく美味
( しいです!」- “This is incredibly delicious!”
- 杏子
( : - 「よく食
( べるわね! 作( りがいがあるわー」- “You sure do eat a lot! It makes cooking worthwhile!”
Key Points
作
( りがいがある = “cooking feels rewarding”Here, 作
( りがいがある means her effort in cooking feels worthwhile because everyone is eating so enthusiastically.The nuance is not just “worth doing” in general, but “this feels rewarding because I can see the result right now”.
Reusable pattern: Verb stem + がいがある → “it is rewarding to do / worth doing”.
The previous line, よく食
( べる (“you eat a lot / you eat well”), sets up the reason 作( りがいがある feels true here: people enjoying the food makes the cooking effort pay off.
わね and わー give the line a warm, delighted tone
わね sounds like a friendly observation shared with the listener.
The final わー stretches the feeling out and makes her sound genuinely pleased rather than formal or flat.