I feel like this doesn't address that there is in fact already the infrastructure in place to move litecoin into 'acceptability' much more quickly then 2011 bitcoin.
We already have services like coinbase, bitpay, mtgox, etc. that make it fairly straight-forward for merchants to accept bitcoin. That was the hard part. I don't see a reason that any of these services in the future couldn't roll out litecoin support, and instantly put it's acceptability right up there with bitcoin.
I'm not saying it's there yet, but I don't think comparing it to a 2011 bitcoin is a very fair comparison when in fact lots of pieces are in place to make litecoin (or any other coin, for that matter) acceptance a much more simple proposition.