If your strategy is long term holding then it's fine to buy the alts right now as the project value will definitely increase as long as they deliver the promises. But if you are looking for a short term profit then I agree that it's better to buy when the market is down especially if you can catch the bottom. This is your chance to gain make money.It may double or triple your invest. So while market is low. Grab the opportunity and wait again for the right time for the market to pump up.