If your front yard if flat you need 21 stones for each layer your would like to build. A typical retaining wall around a tree would require 3 layers. If your front yard has a grading, you have to see how many stones you need depending of the grading.
How much does it cost? As of 2010, the 4-day passes to Comic Con were $100 each. However, it increased as the years went by. According to WhenNerdsAttack.com, the 4-day pass with preview night costs $175 for adults and $87 for juniors, military and seniors.
So the other half has been a fan of this group since they were first on ABDC. He has wanted to see them for years. We were down in Vegas for work, so here was his chance. The tickets were about $90 each for the seats we got, after the fees and stuff.