I'm going to tell my wife I was disappointed on my birthday
Why was your birthday a disappointment?
It's just that she could have found a better gift.
That's the wrong attitude to have. She got you what you wanted. Be happy with that.
Fine, I'll let her know I'll keep the gift.
The fact that your wife cared enough to not only remember, but get you a thoughtful gift should make you appreciate how lucky you are. Reciprocate that same kind of affection to her and you'll both have a happy marriage.