Middle class Americans may already be spending an average of $321 each on Apple products a year, but that's a figure Credit Suisse analyst Kulbinder Garcha believes is only going to rise.

A report by Garcha claims the average spend per user will jump by a further $160 between now and 2015, topping out at $421 a year.

It's a rise Garcha attributes to a shift in affordability and product distribution across the US, with the number of consumers with disposable incomes greater than $30,000 set to jump by 10 percent to 178 million over the next four years.

Spreading the share

Predictably, iPad and iPhone sales feature as a critical factor in Garcha’s projections, with a prediction Apple's share of the smartphone market is to rise from 23.5 percent to 25.6 percent over the next four years playing its part.

iPad market share in tablets is also expected to rise from 88.7 percent to 93.8 percent by 2015.

Emerging markets also factor in the analysis. Garcha believes as they will grow to account for $68 billion in sales by 2015, with 244 million earning more than $30,000 a year.

"Importantly, by 2015, there will be 244 million consumers in (emerging markets) with similar income profiles, up from 133 million this year," writes Garcha.

"Assuming Apple addresses these markets, this drives an incremental $70 billion in sales by 2015…and $17.50 in EPS."

All around the world

China, India, Brazil, Mexico and Russia make up the biggest emerging markets, with China taking the cake with the biggest increase to $28 billion by 2015.

Global subscriptions could also rise from their current base of 2.7 billion, claims Garcha, with 1.98 billion mobile subscribers potentially reachable in 2012 should Apple go into business with the top 50 carriers in emerging markets.

These promising financial predictions go hand in hand with those of Piper Jaffray who predicted revenues of $164 billion for the Cupertino-based company in FY2013.

[source: AppleInsider]