these guys seem to have plenty of products and make decent sales...

these guys seem to have plenty of products and make decent sales but profit margins are so low .
Is there too much competition for them ?
Do their products lack differntiation to be able to ask for a price premium?
Is the market just too small
Is irridium the way to go?
Untill the above questions are answered I remain on the sideline , glossy presentations without forward profti projections does nothing for my confidance , and it seems others feel the same given the current sp.