You are correct to make sure you get the most machine so you can grow into it. I would also suggest a larger hoop so you can use larger designs if you want to. Many ITH (in the hoop) projects are designed for at least the 6x10 or 8x12 hoop. Some of the machines can be upgraded to a large hoop also. Be sure to check that option.
There were many new releases or new-name re-releases last year for the Brother/BL machines. Some use an app now on your phone or ipad.
My experience is with the brother/BL machines since about 2014. I have the Luminaire and the Crescendo and still send quilts out to the LA for quilting. I don't enjoy the process of manipulating a quilt through the machine. I do like having separate machines for either sewing or embroidery. Easy to have both set up and ready to go.
Good luck on your decision.