There are a few type of investors or investments strategies. Some people are new to the space and are looking to make a big chunk of change off of buying some alt coin with a low price, not taking into account the circulating supply, and the market cap of that coin. Others are experimenting with day or swing trading. However, if your in this space and believe in blockchain technology for the long term, and understand that it will be a big part of everyday life or atleast the financial sector of our life in the next few years. Then you want to buy assests that your willing to hold, dollar cost average and accumulate more when the market dips, this will maximize your gains in the long run, if you are invested in solid projects.
I agree, when a coin spikes, it is way too tempting to sell it off but in the long run, its best just to hold - ive missed out on a lot of profit by day trading.
Yeah at first I was really into it because I taught myself how to do it... But holding and accumulating at spikes seem to work better for me