The price of BNB have really gone high -snip-
BNB price is still cheap enough, it is around $300. The ATH is $686, he current price isn't a half of its ATH. So, it is a bit strange if you state that it is a high price.
I think it is not still a bad idea to invest, BNB is one of the profitable altcoins I know with a good market value,
Sure. BNB is one of the top altcoins and it has a very good history. BNB also has a clear fundamental, so it is always good to invest in BNB. Although there is a bad issue about Binance exchange, BNB looks strong enough to survive and increase its price.
but this time if one is going into investing it will be better to invest the amount you can afford to lose, and never to be so attracted to the increase of price which will make one to be greedy to invest a big amount of money.
We must always invest in the amount of money that we afford to lose. We don't force to invest with the money we used for basic necessities. Investing in altcoins are risky, it is only recommended to use safe money. We also don't invest in BNB or other altcoins with loan money. There is no guarantee to take good profits, this is a high risk investment.