I too see LTC only seriously going up in value once exchanges offer more LTC pairs for trading instead of just LTC vs fiat or Tether. So people either invest to hodl LTC or are then forced to convert into BTC as one has to have BTC in order to trade most of the other altcoins. With all the recent surge of interest & new investors coming into the markets, the number of BTC transactions rocketed. With LTC's faster transaction times, other things like arbitrage will also be more feasible... OTOH BTC too will have faster transactions once Lightning comes online, so that won't be a USP for LTC anymore.