For a work computer, it really depends on what you're developing. If you're a backend person (and don't spend your lunch breaks watching movies) I don't think i

For a work computer, it really depends on what you're developing. If you're a backend person (and don't spend your lunch breaks watching movies) I don't think it's worth it, no. But if you're a front-end person building a web-app, I think it's important to have access to screens that are as good as what your visitors have (so you can see what they see). If your site is catering to users who would have 4k, then you definitely need it yourself.