['My next door neighbor is currently having a pool installed. I am so envious! I want one very badly since it is so hot here in Florida!', 'I bet! I would be so jealous, too! Maybe your neighbor will let you come over and swim?', "Haha!  That's funny because I was thinking the same thing!  Maybe I will just save money to get my own pool."]
That's a great way to look at it- take advantage of their investment for now- and then later you can have your own pool!
My next door neighbor is currently having a pool installed.  I am so envious!  I want one very badly since it is so hot here in Florida!