We typically spend between 200 and 250 any given year on each child. We don't do super expensive "big gifts" yet, as they are 11, 8, and 5, so that money really goes far. Their big gift is usually around the 75-100 range and then we get lots of smaller items. They normally have around 10 presents each to open. Some can be small like Barbies, action figures, Legos, cute outfits, winter accessories, books, etc. The one year we did a Wii U for them was a "family gift" and they share it. They all got Kindle Fires another year, but that was really it for electronics. We did get my oldest a cell phone when he started Middle School, so maybe an upgrade for him next year, but maybe not... lol
It does get harder to keep up with the whole Santa thing as they become more aware of the differences between what they get and what their friends get. Some folks go for broke, and that's ok for them, but I have to make up ever more creative excuses for why Santa isn't going to bring you the newest Iphone or an Ipad Air.
I grew up lucky to have one present under the tree most years. I wanted to make it magical for them, but not excessive. I know there will come a time when we have to cut back on number of gifts due to the desires of older kids/teens. For now, our little traditions still wow them.