I am assuming that the first baler is a 2011 JD 468 with 4500 bales???? If that is true then go with the JD 468. With 4500 bales it is not even broke in good, if it has been took care of. I have two JD 568 balers. The 2012 just turned 6500 bales in one season on it. I usually keep them for 4-5 years. They usually have 30-40 thousand bales throught them. The ease of operation makes them a much better baler than the Vermeer. You can change so much from the cab throught the monitor.
Also do not even think about not getting mesh wrap. The time saving during baling will soon pay for the extra cost. Plus you will save hay after that.
I have baled right against Vermeer balers. My brother has a two year old one. I can always get more tons baled per day than he can. In good hay I can make a good six foot bale in under two minutes. In BIG corn stalk windrows I can get a bale in right at a minute. My son baled 380 bales in six hours this last fall.
You need the high moisture kit, mega pickup not the mega wide, and the variable core kit. This will make you have a good simple baler that can bale just about anything you can get in the pickup.
Also the resale will be better. You also will have a much better parts network. NO ONE can compete with JD on getting you parts. They may not be cheap but you can get them in a hurry if you want them. So if you have a field of hay down and it is looking like rain I would bet on the JD over the Vermeer.
DO not think I don't respect a Vermeer baler. I owned Vermeer balers until the JD 566s bales came out. I started out with a Vermeer 605 F baler. The resale is lower and they do not sell as fast even with a lower price.