It’s hard to believe, but not only are there only around three months left in the year, the holiday shopping season is also about to get started in earnest.

With some already started shopping—and some businesses having already put up decorations accordingly—the economics of the season are also coming into play.

New reports suggest that while shopping itself may not be too changed from previous seasons, but mobile commerce may not be playing much of a role therein.

The newest word from NetElixir suggests that holiday shoppers tend to spend less on a mobile than on a desktop PC, about 22 percent less. That’s an unusual development given that around 30 percent of all online purchases take place through a mobile phone these days, but NetElixir sees slower growth of sales all around than normal this year.

One key reason is Amazon Prime Day, which took place back in July and may have pulled some of the demand out of the mobile shoppers’ season back to July.

What’s more, customers may be making a move to marketplaces over websites, and there’s even some concern about the upcoming Presidential election, with uncertainty throwing a bit of a monkey wrench into holiday shopping.

It’s even been suggested that Amazon will continue to win the holiday shopping battle even as it partially dampens it; with its cut of the holiday going from 26 percent in 2015 to 28 percent this year, up from 22 percent in 2014.

That’s no surprise; Amazon has just about anything under its metaphorical, virtual roof, and can provide it without having to fight a holiday crowd gone half-mad for the latest answer to Tickle Me Elmo.

Sure, some of the stores will have some impressive deals; the doorbuster phenomenon won’t go away. Yet people are increasingly discovering the value of shopping online, as demonstrated by Amazon’s increasing cut of the holiday market.

I shop Amazon for Christmas routinely; have for the last few years. While it’s a surprise that fewer will turn to mobile payments to pay for it, many of those who would may well have already done their shopping ahead of the season.