Shannon, follow the instructions on break-in and that 2.5 is a great motor thereafter.
As to purchase, consider mail order if your local store is too high. Out in California, I see them for 449.00 to 479.00 all the time.
Right now Hobby People (hobbypeople.com) has it on sale for 449.00. Also, try Ultimate Hobbies (.com). They sometimes have it for 439.00. You may not have to pay tax if you buy over the internet.