I was at BPS a few days ago and noticed one for $1000, including the rudder. I had a 10% off coupon, which would have made it $900. I thought that was a really good price, considering it came with a rudder. I didn't buy it. Wanted to come home and do a little more research first. Is a rudder really necessary? What will it do for me? A rudder alone retails for like $200ish.