Clothes -- I like to try them on first.
Tools -- I like to see if they are well made and how they feel in my hand. Photos on a website don't provide this.
Food -- I want to check produce and meat before I buy it. And it's easier to stop at shops I'm passing on my way home anyway.
Household supplies -- I don't want to deal with disposing of shipping boxes, styrofoam peanuts and air pillow packs for stuff I can just grab off the shelf at the local Target.
Big-ticket items (appliances, furniture, etc) -- I want a local business standing behind the product and the warranty.
Stuff I buy online are typically things like books (no local bookstores anymore) and odd items that are hard to find locally (like the mic/audio splitter cable my kid needed for his X-box controller).
Even for clothes, yes offline stores do give us the ability to ability to try, but online offers more choices, colours, fabrics, sizes and brands than any one physical clothes store could possibly offer, so I do think online has an edge.
The cost is usually covered by the manufacturer, but the local retailer is usually a point of service.
I will say, I try to never buy monitors online... I've just experienced too many that die prematurely and would rather have someplace I can take back to the same day. My current monitor is actually a 42" UHD TV. I had bought a monitor in that size (40") but it was DOA, and didn't want to wait the round-trip for a replacement. Not the first time I've had monitors die young either. At least they don't weigh over 70 pounds anymore.
Tons of stuff. [ADDED: e-commerce is 10% of retail in the US.] Ironically, especially in the categories that Sears was best known for selling. Major appliances, lawn equipment, home improvement generally, (to a lesser degree) clothes.
I had an electrician come out and look at it. He opined that, due to the way the house was wired, it would be a pretty major undertaking to fix the underlying problem. So I just went along with turning lights off when I cooked.
I finally sold the house, but couldn't pass this problem off to the next owner.
The only place I could find that still sold a microwave so old and feeble that it wouldn't overload my circuit, was Sears.
Thank you Sears! Hopefully I will never need that again, but I am thankful for your help.
As someone who's had his share of problems passed on to him when buying a house, I'd like to know (1) how the next owner found out about the problem and (2) how they managed to strong-arm you into fixing it.
All of my Christmas presents this year were bought on Amazon and delivered direct to my family who live 400 miles away within a day of me ordering them.
Even some of the categories of things other people have listed as things people don't buy online are things I do buy online. Tools for example, if I'm buying something to get a job done I'll pick up something from the catalogue type stores (Screwfix / Toolstation in the UK). On the other hand if I'm buying a decent tool to last I'll pick it out online, usually after reading and watching reviews, and then looking around to find the cheapest price for the exact model.
I was buying a pair of trainers for my partners Christmas. She picked them out on a big department stores website. I went to the store and they didn't keep them in stock. I tried 3 other stores in one of the UKs largest shopping centres and they didn't have them in her size. I tried another shop in a different part of town which didn't have them and finally gave up and ordered them on Amazon. They arrived 2 days later (this only a week before Christmas).
Is there anything people don't buy online these days?