Not Necessary, But....
...for $1K, you will have something that is recoverable in large measure upon resale. It's not that buyers will add for furling, they will deduct if it does not have it. And, you'll limit your market. I have changed many a jib underway, and it isn't my favorite job. I did rig a downhaul to help pull the jib down. That helps, but doesn't keep it on deck and the sheets out of the prop. So... no, not a necessity, but like those of us who still drive stick shifts, a diminishing minority. Rick D>