We have to be understanding here. Ever CP person and most CMs get an opportunity to do a tile for free, and they were included as gifts. So, a good chunk of those 550,000 were free (and still cost production). I would say a more realistic view is that about 350,000 tiles were sold at about $5-10 profit (after you take out costs of construction, creation of the area, maintenance and staffing for 8 years). That is still a good profit margin, but I would firmly argue that the profitability of the early days is LONG gone, and it was starting to lose cash.
I do hope they keep the tiles, but I hope we get at least a design update. I really don't like how the tiles relate to the tombstones, and the empty stones just look bad. Now that they have a set number, they could work with a specific amount of panels necessary.