I have a 6500P. It is a workhorse of a machine with a powerful motor. I love it, but it does not have a free arm. Another smaller machine that may be in your price point is the Janome 3160. It is computerized; has 60 decorative stitches, does buttonholes and has a free arm. It has a smaller bed than the 6500 so if you do a lot of quilting, it might not work for you. I also have one of those to take to classes, but many people use it for their everyday machine. Ask your local dealer to show it to you.
Basically, your decision depends on what kind of sewing you do. I do think Janomes in general, are a great machine. You didn’t say if the 6500 was new or used. As with any machine, if you buy used, make sure the machine has been serviced regularly and see if the seller will let you test it. Ideally you are buying it from a dealer who probably knows the machine and the previous owner. The 6500P is an expensive machine. You want to be sure you know what you are getting.