All the best toys come with big boxes. This is because your kid is going to have way more fun with the box than they ever will with the toy that came in the box!
This is one of Murphy's Law's of parenting.
Luckily, I remember my fondness for boxes, so we skipped the toy step, and just gave our kid's the biggest boxes we could find.
They like these boxes so much, that they hardly play with their other toys.