$BTC Bitcoin (BTC) can be divided, so there is no need to buy a whole one at once. You can buy the amount you need according to your needs and budget, starting from less than 500 New Taiwan dollars.
Each Bitcoin can be divided into 100 million units, with the smallest unit called '1 Satoshi (sats)', which is 0.00000001 (one hundred millionth) of a Bitcoin (approximately 0.02 New Taiwan dollars).
Buying Bitcoin is actually very similar to buying vegetables, which can be divided into 'budget buyers' who buy as much coin as they have money for, and 'quantity buyers' who purchase the corresponding number based on their needs.