Have to say that was a nice move, as someone already mentioned though Google does not love him it's the visitors IMO.
If you are already getting first page results, all you need is to attract the Users attention better than him/her. So you already have "widgets for Sale" you can add to your title the lowest priced widget. So something like "Widgets for Sale From £!".
I think you are too concerned with what Google "likes" when sometimes you have to be concerned with what the Visitor likes. You just need to ask yourself which link would you click on?
At this moment in time I would chose "Every widget for Sale" because I'm gaining more info already, I know all of his/her widgets are on Sale so I automatically think I'm getting a better deal!