Not to mention you can put 7 seats (inc pilot) in the AS350.
I have flown both and think that if you can't afford the squirrel, the 44 is not a bad machine for the money. DOC of the 44 is about 1/2 of an AS350 but then again, you can fit double the passengers (+1 if you have the dual front pax seat) so if you have enough business, there is a balance.
You also didn't bother mentioning what you want this for. That is a MAJOR factor in getting the answer that does you the most good. If you're firefighting, show up with a 44 and listen to the laughter, get it? My response was based on moving people (ie. tours, transportation, etc)
Good luck in your decision