The only thing that can make his action wrong is when he have regrets doing it. But if he is satisfied with what he have, even if the price went really high, and he have no regrets, then what he did is good for him. At least for himself it is the right thing to do.
I agree, it is best to spend our bitcoin when you have a better use for it. Spending it on the item that will help you a lot or entertain you for a long time is worth it. Unless you gamble your bitcoin and lose then, I can say you did the right thing of spending it on something you have been longing to buy for a long time.