To keep within her budget she would probably be best looking for a decent second hand machine with more bells and whistles than she could get buying a new one. I just got my first ever sewing machine in April last year which was a Janome txl 607 and I have to say at that point I wouldn't have wanted anything more complicated and might have been less nervous about it if it had been a simpler model. With hindsight I wish I'd bought second hand for my first machine because if she gets the quilting bug she may find a smaller machine makes pivoting a quilt very difficult and may well want to get a larger one as soon as she can.