"The order was made specifically for testing the new Lightning Network technology and, although it's still far from being market ready, the whole episode proved that the technology is ready."
That means now is a good time to buy. Once transaction fees plummet we'll probably see renewed interest in Bitcoin.
Fees have already plummeted because people have steered away from using bitcoin for transactions because of the high fees.
Lightning doesn't really look nearly like a good scaling solution to me. In the short term bitcoin will probably surge on its popularity and in the medium term lightning will probably help, but in the long term I think some altcoin(s) will overtake.