Well, I am a Didy lover myself and I feel like I have to come for its defense
I too said "special weave yadda yadda"
But then I tried a Didymos, and I had to bite my tongue
I also just lend one of my Didymos to a "non-believer" and she is now a convert
IME, while I found that a lot of cotton fabrics did a comparable job to a German woven wrap for a little while, they were just not as comfortable and supportive to wear for hours.
So I say: if you are able to save for a german woven wrap, it could be the best $$ you ever spent on your baby I truly believe that a good wrap could be the only baby equipment you may ever need: I have not needed to use a bassinet, playpen, bouncer, or even a stroller with this baby yet