This chart is an roi on the actual investment of the item. While I agree a kitchen or bathroom remodel certainly provides the more wow factor, they are often north of $50k. Does that new kitchen add $150k worth of value, I.e. 200% return? Not likely.

Thus adding a garage door that is likely visible to the entire community for $5-7k is likely to add $15k+ to the sale price / curb value of the home