I have a Bernina 640 with BSR, Janome 6600, Janome Quilter's Edition, Janome Jem Gold, and an HQ 16 with the regulated stitch. I wouldn't trade ANY of them!! I really like my Janome 6600 to piece with while I am embroidering with my Bernina. I use the Janome QE in my camper thru the Summer and have the Jem Gold to take to classes or hem pants etc. It is a wonderful, rugged little machine.
Take that money and do with it what your heart tells you to do. My HQ 16 was close to $8,000 when I got it several years ago. I had the Bernina with the BSR thinking I could quilt my own quilts, no matter what size but even using the Janome 6600 with the larger throat plate to stitch in the ditch was a struggle for me. That is why I got the HQ 16 so I could quilt my own quilts!
The men don't think twice about buying guns, classic cars, or any other hobbies. Two machines that you really, really want and have the money for is not being selfish in my book! When will you get another opportunity like this????