by Deroche
Another factor to consider is having an accurate inventory, especially so when bringing maps to somewhere outside your home, say a tournament.
Bricking does two things: compact storage (important), and let's you know right away if have everything you brought with you when you're done and packing up (even more important). Losing tiles is easier than you think, and it's getting more difficult and expensive to replace them. Have you tried replacing one of the Rock Outcrop pieces from the Underdark set lately? You can't.