Yelp Bot/ Bots in general

I was thinking of making a bot for yelp that can get all results of a search in a niche for example you enter "Dentist" in "Toronto" and it will get you every result from those including email name phone number reviews ect. Do you think people would buy something like this? I can make bots and such like this where you can get and post data automatically and fast but I just don't know what people want/need. So also taking suggestions

Someone already made one:
http://www.wickedfire.com/content/124415-yelp-scraper-automated-scraping-bot.html