No, you do not NEED one of these!
I, for example, have been quilting for 30 years, have taught, designed, published, done commissions, and owned a large quilt shop, yet have never owned such a high end machine. I quilt on an 18 year old mechanical Bernina 1031 and adore it. I also own two vintage Berninas, an 830 and an 807.
"Wanting", now, that's a totally different story.....and completely depends on your ability to pay, your willingness to pay, your motivation for buying, and what you plan to do to make the purchase worthwhile in the future.....besides bragging rights, of course!
Jan in VA