tower is more like $519 if you buy the super saver club discount, then you can get $40 off last I checked.

HighRevHobbies has it for $495 with apparent free shipping.

Trick Parts has it for $499 + 4.95 priority mail shipping

you also from these two places get apparent points you can apply to other items for discount. I think for TP, its 20 points equals a $1 credit.