The rate of a 500 USD Amazon card today can vary depending on various factors. Market conditions play a significant role in determining its value. If there is high demand for Amazon cards or if there are fluctuations in the currency exchange rates related to the card's purchase, the rate can change accordingly.

Typically, the rate is influenced by the current economic situation. A strong economy might lead to a more stable rate for the Amazon card. However, if there are uncertainties or economic downturns, it could potentially cause the rate to either increase or decrease.

Moreover, competition among different sellers or platforms offering the Amazon card can also impact the rate. Sellers might adjust their prices based on what others are offering, which in turn affects the rate at which one can obtain a 500 USD Amazon card today. This constant interplay of factors makes it essential to keep an eye on the market to get the best rate possible.