Just picked a new ipad mini and I am looking for a good folio style case. I prefer leather over nylon so here is what I am looking at so far: Spigen in vintage http://www.spigen.com/tablets/apple/ipad-mini/ipad-mini-leather-case-leinwand.html Knomo in cognac http://www.knomobags.com/usa/ipad-mini-folio-cognac-leather.html Beyza in grey http://us.beyzacases.com/pd-folio-for-ipad-mini.cfm I ordered the Spigen because it has leather back. Anyone own these? Thoughts? Any other leather folios to consider?