It probably is following the last year’s long-awaited introduction of the Xbox One and PlayStation 4 consoles — and growing interest in downloaded games — researchers at The NPD Group conclude in a new report on 2013 Games Market Dynamics: U.S. The firm says that total spending on video game content increased 1% to $15.39B. Consumers paid $7.22B for downloaded games, and $1.83B for used and rentals. That more than compensated for the 11% drop, to $6.34B, in sales of new physical video games for consoles and PCs. Hardware sales were up 5% — NPD doesn’t provide a dollar number — resulting in a 2% increase in spending for hardware and software combined.