The N95 reportedly sold 10million units in the first year (enormous number back then)

But there was never any community support, scarcely new features backported from later symbian releases (by the community, nokia continued support long enough) and no custom roms ever released. Compare this with the N900. CSSU, Nitdroid, MeeGo CE, Kubuntu mobile, debian, shr, backtrack and the list goes on... The community supprort is tied not to the total number of sales, but to the actual number of developers that buy it, (if it's a geek device the proportion of devs - power users that have something to contribute is way bigger so actual sales can be less). Anyway I wouldn't want to have the only N900 in the world, but I wouldn't be more content if everybody had one either.