In your opinion which electronic devices are a waste of money?

To me tablets, smart phones and e readers are waste of money because a laptop can do everything those devices can do and more. I would rather buy a normal cell phone than a smart phone because in my opinion phones should be just for making calls if I want to go on the internet I'll just use my laptop.I like e readers because they encourage children to read because they provide easy access to a wide variety of books however you can download and read ebooks on your laptop so e readers are a waste of money. Last but not least tablets are a complete waste of money because laptops are greatly superior to them. Tablets are only more portable than laptops but other than that they suck. Laptops have way better processors and way more free space. Tablets only have 32gb of space while there are laptops with 500gb hard drives.