After a ton of research on trying to become more aerodynamic, an aero wheelset isn't the best option price wise. People often upgrade wheelsets because they can drop huge amounts of weight also.
An aero road helmet will almost help you the same as a good wheelset, at nearly 1/10th of the cost. The newish Castelli aero race 5.0, will help you the same, if not more as a wheelset, also about $100.
But yes, I do ride 50mm tubulars.