with only 10 chapter/episodes, it just ain't convincing enough. it took me awhile before i could see what was so good about the series (around the 10th volume, at the end of Arlongs fight).
another thing, coming from a fellow anon the other day, was how some anime fans tend to watch anime due to the 'exotic' artwork delivered by most anime, compared to the norm that is the usual American cartoon art style. kinda like how'd a guy would prefer an asian chick over white chicks. with OP looking more cartoon-like than anime-like, art wise, some will ignore it, along with the story which is actually the main focus of the series.
of course, sadly, to get to the better part of the story, you'd need the time and patience which most people lack.