That's actually a good point (I guess I was only doing that exchange back the first few times I was here, not knowing I'd fall in luv with the island.. lol). I've been doing the 'US $$$'s only' for a while now so exchanging back hasn't been an issue. The only Jamaican I use now is just the change I get back from the locals when I only have big bills.
Hussyband, here's a good read from economic pros if you're still curious...
https://www.slideshare.net/EmanAbbas...urism-13613739