The only big difference i see in this two types of investments are the risk of lossing and share of earning funds.For me i think buying and selling has much less danger of lossing money not like investing in hyips .Also earning money is alot less difficult in trading.
Hey bro I think that you haven't fully understand the question of this thread, OP didn't mention anything about Bitcoin investing but investing in general, and obviously there is really no such thing as investing in an HYIP because you are just putting your money and hoping that you will be rewarded or get paid from the money of newer members which is most likely close to stealing. A real investing comes from putting your money on actual asset may it be stocks or real estate which is way more better than risking your money on a fake investment.