Forgive me for brand loyalty, but I often make my clothing choices more on a "look" that I associate with particular creators than with the features of that clothing.
I do find that many (if not most) of the outfits that I currently wear do include at least a few fitted mesh items. But they were not bought for that feature, rather because I liked the way they looked on other avvies, or they were in a line whose look I already knew and admired.
So in answer to you question, but for myself only, I would say that making every single article of clothing you sell be fitted mesh would not be the best investment of your creative energy.
Thank you for soliciting feedback. I hope this helps.