Keep the all aluminum mast. It is a BETTER mast. And they aren't making them any more, so you now have a collectors item to bring to The Antique Roadshow. I had my boat long ago enough that I could of gotten a free retro-fit. -I didn't.

Now, if you want to compete, just find a used mast with a comp tip. The price for the used comp-tipped mast will be the same, or less, than a new retro-fit. And having TWO masts for one boat makes you a cool dude! Cool dudes attract the chicks. You say you don't WANT to be a chick magnet! Well, then just wear a Richard Nixon/Halloween mask while sailing. That should repel any unwanted beautiful boat ornaments!