@Jenny
Just because it's a trend and something that Brian Chesky/Airbnb seems to be pushing a lot in their marketing over the past year or so, as others have said, digital nomads do not necessarily make the best guests, so be careful what you wish for...
These days, I only host long term guests, so I am used to people who are not necessarily tourists, but here for work or study. However, the digital nomad, rather than going somewhere else for these purposes, is using your home as an office. Therefore, there are much higher costs involved as well as way more attention needed if you are a homeshare host like me. And can you charge them more for this? No, not really. They expect to pay LESS, not more, because they think as long term guests they are kind of exceptional (not true) and they are doing you a favour.
If I sound a bit bitter about this it's because I have hosted many digital nomads, especially in the past year, and I can tell you they tend to be the most demanding and least respectful of guests.
I have a desk and fast WiFi in every bedroom (so, pretty much what you describe as the requirements) and even had to include in my house rules that guests should not take over communal spaces for their work, yet they do it none the less. And they tend to break numerous other rules and create a lot more mess because they are home all the time. Heaven forbid the WiFi drops for a moment, because even a few minutes during a month long (or longer) stay could result in a low rating.
While I do still accept digital nomads (since Airbnb's Winter and Summer releases, many hosts cannot afford to be as fussy as they would like), they are far from my favourite guest.