Rushing your town hall is a terrible idea because it slows you down a lot. There are three reasons for this.
1. If you are on a high town hall (between 7 and 10) and you have a level 1 wizard tower, you have a lot to upgrade which will cost you a nightmare amount of gold.
2. When you slow down you will stop playing because you will get bored. Guaranteed!
3. If you rush your town hall and you get attacked by somebody who is lower than you, you will get mangled. That means you will lose a lot of trophies.
The secret is this: if you do not rush your town halls, you will actually go much faster through the game.