BTC is always my first choice whenever I'm buying cryptocurrency, so for sure I'm going to for cryptocurrency first. Judging from the current price of bitcoin, I will buy 1 btc and then use the remaining money out of the $10,000 to invest in IOTA, but not really all of them will be going into IOTA, I will just use part of the remaining money to buy IOTA and other good altcoins like ethereum, neo, xrp and xmr.