Romantic Question

So I read an article today and decided I want to ask this question for the ladies just because I am curious. When dating a guy, would you prefer he gave you diamonds or took you on a horse-drawn carriage ride to the opera (or something similar to that if you are like me and would fall asleep at an opera)? The reason I ask is because a mathematical study has found "women" prefer gifts with no intrinsic, or resale, value. (I put women in quotes because no actual women were consulted, just math simulations and since we always hear how women aren't represented in the field of mathematics, who knows how accurate the models could be. Just think "male math dorks" if you don't believe me.) Anywho, I have had two private responses, one agreeing with the study, and the other agreeing in part.