By the time you put that information into action, your chosen niche could be on a steep downward curve, with buyers moving on toward another, similar niche. (blog.infinitypublishing.com)
We haven't had too many sales figures to help define this apparent downward curve, however, at least until now. (nintendowire.com)
The outside metal and glass construction is rather hard to distinguish from the Galaxy S6, although the top on the device does have a slight downward curve added to make it more comfortable to hold up to your ear. (androidheadlines.com)