The very fact that it's the series end and what name this series holds is the very thing that raise its standards and expectations. The series's hype itself is doing it with none of us needing to do that.
I'm sure there was a minority of people back in 1995 who believed that the final volume of DBZ wouldn't garner too much financial success. The hype for Toriyama's work was/is even greater relative to Naruto's, and the quantity of volumes is less as well. I tried searching for the exact sales estimates of the last DBZ volume, but I couldn't find anything.
The hype for Naruto has been gradually declining for years now. Hell! Come the final 30-40 chapters, many readers were only continuing to follow the series for the sake of concluding it, not because they were entertained or impressed by the manga. An ending with as much controversy surrounding it like Naruto would have only increased the rate of said decline by a notable percentage.
Except that success isn't measured by revenue in the industry, the number of sales is what determines success. It hasn't achieved 1 million sales in its first week for the last volume of a mega series, yet One Piece's last volume sold more than two million in its first week, for a volume that doesn't have anything special about it. So no, it's not successful.
I'm sorry, what does the amount of sales to people alone indicate? It's the profits acquired from the sales that inspire and drive the manga industries. You overlooked that step.
One Piece first began in a period during the mid 1990s that could be considered a golden age of manga with notable series like Rurouni Kenshin and Dragonball ongoing or at least still in the general interest of the public. Granted, Naruto technically was part of the 1990s as well, but it started in the ending months of the decade. Moreover, you have to compare the reader's interest for both manga's concepts, that being One Piece's pirate based universe versus Naruto's ninja themed equivalent
Edited by Atheck, 12 February 2015 - 02:33 PM.