What is the best way to handle extra user parameters

Hi all

I hope this is the correct area for this type of question.

I’m working on a site that businesses can sign up and then sell 1 type of widget. Each business just needs name, widget and price. Then there will be a page that shows all business, with their widget and price. There will also be a page for the business to log in and change their widget and price.

What is the best way to handle the extra parameters ‘widget’ and ‘price’?

From what I can work out there are two options

1/ Sign up the business as a user in a group with no admin privilages. Add the two custom member fields ‘widget’ and ‘price’ for the users and hide the other fields I don’t need (like birthday). To show these business I then grab the users.

or

2/ Sign up the business as a user in a group with no admin privilages. Then create a ‘business’ channel and to that channel add the custom fields ‘name’, ‘widget’, ‘price’, ‘user_id’. Then somehow link an instance of the business channel to the user. When I want to show these business I grab the details from the channel.

If it is the second option what is the best way to link the two instances?

Sorry if this is already answered somewhere. I’m not getting much luck from searching, most likely because i’m having trouble phrasing my question succinctly enough.

Thanks