Every brand has their different models with different price points. For example, Wilson has their 6.1 models retailing at $199, and their "Pro" models at $179. Head has their Prestige models retailing at $199, their Radical models at $189, and their Extreme models at $169. Dunlop has their "200" and "300" Models retailing at $179, and their "500" model at $159. Prince Black at $199, Prince White at $179. ETC. There's usually a $20 price difference between models. My question is - Is there really a difference in the cost of manufacturing/producing any of these models over another? Does it really cost Head $30 more to manufacture the Prestige over the Extreme, or is it all just a marketing scheme that all the major brands use? This is just something that I've always wondered about. I'm sure there's someone here, or even TW staff, who has some insight. Thanks.