My parents had quite a hard upbringing without much but now have enough money to treat DGC. They bought my DS:
a nice fleece jumper
Small play set cost approx £20
Large floor jigsaw
Coat (showed to me first to check it was ok and needed, it is)
Bike helmet (we asked for and need)
Little pets hamster in ball
3 L/s tops
all clothes M&S just to gauge pricing
DH’s mum bought DS a lovely hoodie and trousers (expensive brand like Jojo maman Bebe) and a lovely special book with activity attached.
DH had a rant at me that my parents buy too much and ruin the specialness of Christmas. I had a lovely day but feel so deflated now 😞). Fwiw, DS is 3 and not really arsed who bought him what. I’m not bothered which grandparents buy more and very grateful for the beautiful gifts his parents chose.
fwiw DH’s parents have double the number of DGC that mine have to buy for so that may affect things.
YABU - that’s far too many gifts from a grandparent and they should be spoken to and told to buy less
YANBU - let them go for it, it’s lovely to be spoiled by grandparents.