I agree with the above poster. Wait and see what you might need. I have all the feet that are standard with a Janome DC2011 and have only used maybe 5 of them. I have a universal darning foot but haven't used it except to see if it fit.
I might be tempted to get the gathering foot if you plan to make clothes. It is one foot I am thinking of getting just because I make alot of clothes for my DD>