I understand where you're driving with this concept. I think, as a rule, when we're contracting, whether we're buying pencils or out there seeking additional space, we should always be on the lookout for what the comparables are, and hence try to get the best product at the best price. With real estate one needs to be careful, because having done this myself in a prior career, when you're already in a building somewhere, and your lease comes up for renewal, you're likely to get a better deal from the current landlord—and this is not 100% of the time, but 80% of the time, depending obviously on the vacancy rate in the city you're in—given that you don't have to move and don't have all the inconveniences of moving to another building.
When you take all of that into consideration, plus the fact that at Public Works they have a number of professionals who keep abreast of the costs of particular space in every city, every day, I would say that if we get an unsolicited offer from a landlord in a building where we are, and the offer is attractive, I think we should take it.