There are a number of reasons why prices on Koh Phangan can be high, especially compared to other parts of Thailand.

• High demand: Koh Phangan is a popular tourist destination, and there is a high demand for accommodation, food, and activities on the island. This demand drives up prices.
• Limited supply: Koh Phangan is a relatively small island, and there is a limited supply of land and resources. This limits the supply of accommodation, food, and activities, which also drives up prices.
• High transportation costs: Koh Phangan is only accessible by ferry, which can be expensive, especially for large groups or those traveling with vehicles. This adds to the cost of goods and services on the island.

Here are some examples:

1. Fuel prices

* A 91 - ฿43,60

* A95 - ฿43,60

* Diesel - ฿38.00

2.  Koh Phangan rental rates vary greatly depending on location, amenities, season, and length of stay. Also, don't forget the fact that many of the accommodations are run by individuals ready to negotiate discount rates. Here are some of the websites AI found:

* Thailand-villas.com: This website has a wide range of villas for rent on Koh Phangan. The prices for a two-bedroom villa start from $150 per night ¹.

* Holidaylettings.co.uk: This website offers several villas and bungalows for rent on Koh Phangan. The prices for a two-bedroom villa start from £95 per night ².

* Bayvillas-phangan.com: This website offers monthly rentals for villas on Koh Phangan. The price for a two-bedroom villa starts from 255,000 THB per month ³.

3. Pizza

* Margarita  ฿220.00 - ฿250

* Diavola ฿280 - ฿320

Overall, prices on Koh Phangan can be high, but there are a number of ways to save money. By traveling during the shoulder season, staying in a hostel or guesthouse, eating at local restaurants, and cooking your own meals, you can enjoy Koh Phangan on a budget.