It is said that opportunists can smell money. The times have been good for the past few years. Alot of people have been attracted into the tiling business as a result of that, and though many are serious in their endeavor, many are merely in it for a quick buck.
If the times are changing for the worse, remember that it is temporary, and that harder times weed out cowboys and poor performers.
View harder times as a challenge. Hardships forces us to better ourselves.
Become better and more effective at what you do. Broaden your skills, and provide a better service than your competition.
When the cycle turns back up, you'll come out of it more sharper than before, ready to expand, IF you are single-minded enough to weather it.
My five cents...