I’ve said this before, I’d much rather my ads tend towards the latter; all the better to keep a hold of my $SS as I’m not interested in any of those things*; however, I might buy a(nother - look at username) Spiderman plushie.
I don’t think anyplace actually holds the item when you put it in your cart - and I would be completely unsurprised if the items were unavailable when I went back six months later. It doesn’t really matter to me if a company has a “wish list” or holds items in my cart or both - what I want is a way that I don’t have to look for the items again next week, when I decide to buy them because I haven’t found anything I like better.
I don’t really mind creating an account to browse - especially since I like to save items in the cart while I shop at other sites. But I won’t put payment info in until I’ve decided to buy.