Now I noticed that there is a Bitcoin certificate with 1:1 leverage available at the online bank I have used to trade traditional stocks and stock funds for the past 10 years. The buy and sell fees are 2.5% for the certificate.
Now I'm curious if there is any reason to bother with the risk and hassle of using cryptocurrency exchanges or if I could just as well just buy the certificate if I want to "invest" more in Bitcoin? The online cryptocurrency exchanges have similar fees, and it seems like the risk is higher and the user experience is much worse, especially when selling and withdrawing to fiat currency.
Obviously I'm not interested in using bitcoins for payment, this is for pure speculation purposes.