I agree with all the advice above. Figure out what you really want NOW and what you envision growing into skill-wise.
Not sure what your budget is, but I'd get two different machines (not at the same time). I'd get the sewing one first and figure out how often I'd say to myself in the course of a month, "Boy, I really wish I could embroider this!" If you're saying it a lot, and frustrated by the lack of an embroidery machine, go get one for a couple hundred . I THOUGHT I'd like it, but the reality is, it'd be a passing fancy, and if I really want embroidery, I have a couple friends who LOVE to do that and have said, " Bring it over!" But that "need" has never been great for me.
However, a big throat WAS a "need" (okay, when we say "need" it's not like food or water, but it's to keep us from super frustration with the process--for me, quilting was not fun till I didn't have to wrangle lots of fabric through a little opening. I could envision quilting bigger quilts with JOY if I had the bigger throat. The automatic thread cutter was a luxury; trimming my own threads was time-consuming but not a frustration. Luckily, a large throat machine and a thread cutter were standard features in my upgraded machine. The knee lift? Never used it. Didn't picture using it. I might, might not. So, all that to say, walk yourself through what you do now, and ask, "what do I NOT enjoy about this hobby with my current machine? What are my must haves, would like to haves, and what are the features I not willing to pay extra for because I wouldn't use them?
After those questions are settled in your mind, WRITE them down so they will keep you from being romanced by the WOW factors in a too-fancy machine. Then go test different ones and see which one you just feel at home with. You'll feel it intuitively. You'll like the sound. You won't want to get up and leave without it! (But do get up, go have lunch, think about it, "sleep on it", then when you're at peace, get it.
And be sure you like the dealer you're working with. Personality as well as knowledge is important. I actually have more respect for my dealer because she talked me into NOT getting more machine than I needed but convinced me why to go up a LITTLE from what I thought I needed. No regrets here.