Should I get a MacBook Air?

Right now I have an iPhone 5S, an iPad 2, and a five year old Lenovo Laptop. I prefer to use my iPad for everything, because of how old the Lenovo is. I usually only use my laptop to print and do other things the iPad can't handle. I love my iPhone and iPad, because of how well they link together, and I heard the Macbook also links very well. I'm worried I will not use the MacBook, and will have waste $1,000+.