not only alt coins though. you can also trade your rupiah to bitcoin for free if you become the market maker
![Cheesy](https://bitcointalk.org/Smileys/default/cheesy.gif)
but then you'll get pending orders and sometimes IMO it's better if you just pay the 0.3% fee to avoid the risk of the volatility price that strikes practically every minute
I prefer to use both. I usually just use the limit option when I want to buy bitcoin in a cheaper price but I don't have the patience to wait for it so I just set my own price and let it be
![Grin](https://bitcointalk.org/Smileys/default/grin.gif)
true, well it's not like they charge us 1% or anything right? 0.3% doesn't make that much difference