The hot topic seems to be when the recession is going to hit and this has been going for a few years now... Still isn't here. The one thing that seems constant is that when money is cheap, there are no deals. When money is hard to find, there are deals in RE. We were "lucky" to get going back in 2007-2008 however we were buying houses when everyone said that is a horrible idea. It wasn't luck, it was a calculated risk.
I have been telling my clients the last 2 years to get a LOC so they have money available if something comes up or if prices start to drop. With a LOC they don't have to go through the costs of a refi and aren't paying interest on cash they don't need. In many cases the bank will even eat the appraisal costs. With rates very low I still recommend this as the best approach.
For someone with a fire to grow, a reverse 1031 is more feasible in this market as many want to sell at current prices but they don't want to purchase. This gives you the option of finding a deal you want, then selling your current property via 1031 exchange so you pay no tax.