Brother, in the end it's your cash to burn. As a military aviator, I've spent thousands of dollars on women and booze. The rest of it, I've mostly wasted.
For some of us $19k would be a couple of years worth of savings. Others, it would be a good night at the craps table.
I think you are the only one who can answer the "worth it" question. But I'm sure that all of us would be happy to provide guidance and insight based on our individual experiences. I bought mine from and individual rather than a dealer, so my negotiation tactic was different than yours. I was buying from a guy who had his own blood, sweat, and tears in the Jeep, rather than a sales person with very little if any knowledge on the history and background of the vehicle. To me, that was worth something. I could realistically ask specific questions about the Jeep and expect accurate answers that I could verify with my own eyes, validate with receipts, or with a call to the shop where the work was performed.
We all want you to be happy and post lots of pics with you our enjoying your new purchase, not pics of unexpected rust or repairs that were masked at the time of the sale.
-Cheers.