Just to join the pile-in, I’ve always found BarSu to have been clear that only registered guests get the free drinks (by always I mean last 6-7 years or so). I couldn’t possibly comment, but I believe La Sala might be more flexible at times in that regard.

Also, while we’re talking about costs, hasn’t there been a change in the happy hours so that if you are in the right venues you can have an evening of free food and drink for longer than historically.