I am in the market for a new bike. I was strongly considering the 300F or 500F. after doing some research I found that the top speed of the 300 was about 100 to 105 miles an hour and that the 500 is only about 115 miles an hour. there is over a 1000 cost difference between the two bikes is it really worth paying over $1000 for 10 to 15 miles an hour extra? what are some of the other benefits of the 500 over the 300 and vice versa?