These litecoin prices have fallen to approximately twice the pre-bubble valuation and thus are very tempting, insofar as the analogy to the great bitcoin bubble holds . . .
Unlike BTC, there is no reason to expect increasing LTC adoption.
Who that isn't deluded is investing for BTC for adoption? I only see investor pumps in crypto-currency to-date.
There is definitely increased BTC adoption going on. There is real growth in retail acceptance and some other categories such as travel, and some real startups doing interesting things and building out meaningful capabilities that didn't exist before such as remittances, bitcoin debit card, new investment vehicles coming soon, etc. Whether that is a reason to buy BTC speculatively is a question only an investor can decide. Either way though, it is a clear difference from LTC, which has no movement on adoption at all, never really did, and it doesn't look like it ever will.