Middle-aged men proved to be the most selfish shoppers in January 2014 -- and the trend looks set to repeat itself in 2015, according to insights from eBay Advertising. It measured patterns across a basket of 10 luxury items, including designer fashion, jewellery and technology, using its "indulgence Barometer." It found that January and March both registered highs of self-gifting. Last January, there were 3.8 million searches for luxury items from men between 45 and 54, the highest volume of consumer inquiries across the gender and age ranges.