The batteries last a couple of years, and the programs I've written for it are still quite useful. Today you can't buy anything like it. You might find something about the same size and weight, but it would have icon-like menus pointing to various canned applications, many of questionable utility. It would use about 100 times the memory I have in order to do this, and needs to run much faster just to get anything done at all.
Battery life suffers accordingly.
While it's true that most consumers aren't programmers, this is one example of what has happened in microcomputing. This was fine for amateur programmers, which early computer users had to be. I had nothing but praise for Microsoft. It was also a bargain compared to IBM's price. Each upgrade had new capabilities and commands, many of which were useful, but each also had some bugs that weren't in previous versions.