Going to be upgrading to newer square baler.

I currently have 2 balers.  A 336 and a 346, both in fair shape and great working condition.  I am thinking about upgrading to a 348 JD baler.  Before I pull the trigger what are the pros and cons on the 348?  I will never bale more than 6000 bales a year, 4500 is more realistic.  

 

I am also getting rid of my 1033 bale wagon and upgrading to a 1037.  To me this is a no brainier.  I know a guy that has a 1037 and a 338 in great condition for 15k for both.  always shredded.  Does that sound like a reasonable price?

Going to be upgrading to newer square baler.