It is usually those who have, in their past, have experienced real poverty who are the most careful about spending, even when they have some extra money. Not those who have never experienced that.
I can quite sympathise with your hubby objecting to what appears to be some sort of obsession with buying things, anything. It so often appears in people who are unhappy with their lives, and somehow always feel that the next things they purchase will make them happy.
If you so like the cuddly toys, then you should have bought one for yourself, very few teenagers will want these, and many parents of teens are desperately trying to get those teens to get rid of their accumulated cuddly toys from their early years, not get more.
As for the comment about how many bags, shoes friends have - reminded me of my children when they were teenagers who always told me that 'ALL their friends had/or did this or that, so it was if they were not allowed it. Surely not the comment I expect from an adult, unless they are deeply unhappy.
Uncontrolled need to spend, spend and spend, really does need curtailing and, perhaps, some therapy (CBT) to find out what is really is wrong.