In general, the lower the cost of living somewhere, the cheaper it is going to be for Westerners to visit!
The cost of living in many parts of Indonesia, including Bali, is significantly lower than in many Western countries. This means that everything from food to transportation tends to be less expensive, and makes your visit all the more affordable.
For example, while you might pay upwards of $4-5 for a beer in the US, and even more in Australia, you might find a similar quality beer in Bali for just $1-2.
