Smartphones and their costs: The higher the cost the better the phone?

 2015 has seen an explosion of smartphones that are smarter than they can ever be. A well off person can get himself a high end smartphone without looking at the cost, what happens to those that cannot afford a $1200 phone, are they left out of the fun? the answer is no. most of the features on the high end smartphones eat up too much data, which means a high maitainance.
It is thus best to choose an Injoo smartphone rather than a sumsung galaxy s6 edge.
http://www.takealot.com/cellular-gps/all/?dcat=latest-and-greatest-&pagesize=50&order=price&direction=asc

But i might be wrong,What you think?