Nino:
Yep, I agree, prints on photographic papers seem to have more apparent detail, but if you use a good canvas, and spray it with the gloss protective spray, the detail will still be there. Yes, it's something different, not a photographic print, and not a painting.
I was not a great fan of prints on canvas either, especially in the "old days" when the lab would strip the top layer of a "C" print and press it into canvas, and then lacquer the hell out of it. But I think ink jet on canvas is different, and the new materials are considerably better. STILL it's not a slam dunk! (doing prints on canvas)
Actually, any pigmented ink on micro porous paper is asking for trouble, if it isn't sealed, or framed under glass. The micro porous surface will allow all kinds of airborne contaminates in. That was the beauty of photographic prints--the gelatin surface sealed the dyes from airborne contaminates. Maybe that is one reason canvas prints have become such a "rage". You can seal the surface. You don't have glass in the way. Gallery wrapped prints on stretcher look "arty", and you don't have a high priced frame on top of it!
John Nollendorfs