I have a 13yo and a 6yo.
I'm thinking that we are going to end up spending more on the 13yo this year. There are a few things I'd like to get him, they are all quite expensive, but some are clothing items. A branded hoodie from JD for example can be pricey so stuff like that is usually given as gifts.
My 6yo really doesn't need anything, but will end up with a nice few presents as toys are cheaper and some things can be bought second hand and he'd never know the difference. So his gifts will actually look like more. Youngest tends to get more clothing bought throughout the year because it's cheaper, grown out of faster and cheaper aside to buy for.
Anyway I'm rambling but I'm sure you'll know what I mean.