Buying bitcoin is too expensive now, I can't afford to buy even 1 BTC now but to buy eth, or LTC I like them both. Difersifcation of asset is my strategy to invest in cryptocurrencies. Popular alt like eth and ltc have good future. They are going to be the compatibality to bitcoin due to the price of bitcoin is too high. They are not competitor but they replace bitcoin for lower transaction. If I want to send high amount of money, I prefer bitcoin. I also like to draw my bitcoin to fiat. using etherium and ltc is for trading and investing in ICOs. I try to grow my asset via those two altcoins.