Stellar Lumens could be a good investment but there is a trend of cryptocurrencies which are worth nothing to be bought a ton at once which causes this price increase. Examples are Verge, Ardor, Doge and many more. If I were to be you I would look at the developer's activity and the community appreciation (https://www.coingecko.com/en). If you look at the Stellar charts on (https://coinmarketcap.com/currencies/stellar/) you'll see that just recently it has risen, there is of course a possibility that this will be the next bitcoin and I do agree on the fact that this is a high risk investment.