the time of posting this thread i think BNB was on its low price... when you bought that time you already gain profit.. BNB is a good choice to invest
BNB was one of the trending coin in recent times due to Binance's growing reputation but it just fell shortly due to the Binance hack which might have its effect until the withdrawal on Binance resumes then only we can find the real affect on the prices.
it is not possible for BNB to be our best choice for exchange coin, it is so famous cryptocurrency that it can is being supported by a huge famous Binance exchange, and because a well developing team, it has so much potential to be the leading exchange coin of crypto world, recently BNB was hacked huge amount of BTC, this is also a great chance for team Binance to work harder on their platform to improve it so BNB can be more worthy to invest in the future.