Well, I only buy stuff I really like the looks of, it makes the tough sweaty part easier to deal with. Some people think thats insane, but whatever.
Anyway, I'd do two things- yes, look at the original price because higher end shoes tend to have better features like good molded heel cups and stiffer soles. Buying shoes is buying shoes.
Then I'd call Performances tech desk and ask about fit. Diadoras are infamous for being narrow, though that's a good thing for most women. I have Chilies that are awesome- why did they stop making those? I love my Lakes, too. There really is a difference between entry level shoes and the pricier fancier ones. And both laces and straps are usually good. you can take the laces out, but they can be used to adjust the fit more than you think. Good to have.
If you use good shoes outside, cheesy ones in class are just going to drive you nuts. And even whithin one brand different models can fit very differently, that's why you should ask. I pitched the catologue (money diet) so I can't look at the shoes, but your foot size and shape is gonna have a lot to do with it. Performance should be able to tell you whats up with that.
And you might score great shoes- you can always swap cleats and use them outside.
missliz