Nothing but a development disaster for a minor amount of adsense income
The days of build it and they will come are long over, you need an APP today and cloud hosting and then you probably need marketing dough, so development costs out weigh any reason to do anything with the term.
The days of cheap development ad scoring adsense is over, so no major value, maybe low xxx to mid xxx to a speculator that still thinks developers will do projects with apps for adsense, they don't.