Although I've seen the so-called limited editions, only to later see the same just no more ... limited, making it an oxymoron to be called that.
Is this about photographs inkjet printed (sounds like it) ? I doubt there is much unique value to any inkjet printed item no matter how few of them there may be as there is always going to be a suspicion of more of them being out there anyways, even if not outputted in a controlled manner (something that limited also means) . If limited implies rare then different paper size or type kills the idea, at least it would for me. IN other words, if I were to make limited or better, yet to buy one, it would have to be that ... limited ... and that is end of it's printing story (outside of what is publicized in widely available forms like books, magazines etc. ) Once that image gets into mass factory for cheap reproductions, my limited print I've been so proud to own is now hardly any different than what sold at a fraction or was used on some licensed product.
To sum it up, I view limited as rarest and (better) not available at all in any other forms. So I would pick a few images I want to preserve to the lucky few and forget about them once few are sold out, focusing instead on other work that would up my reputation as a worthy artist, automatically making those limited prints so much more valuable. Any other way of looking at it dilutes any potential increase in value.
Picasso called himself the first collector of ... Picasso's work. He knew what he was up to.