I'm thinking about selling some less popular altcoins on one exchange then using the bitcoin to buy coins on a different exchange.
I could just withdraw the BTC but if I buy LTC on Exchange 1 then send it to exchange 2 and sell it for bitcoin it will transfer about 200% faster.
Litecoin truly is the Silver to Bitcoin's Gold. Bitcoin is for high value, low speed transactions with a significant fee. It will eventually be used for houses, cars, etc.
Litecoin is perfect for ordinary use of $1-$200 of value and soon with lightning network you can even give a merchant bitcoin with litecoin if that is their preference.