I agree that it is an investment, but it is a very risky investment if the person did not buy in the first few days
Investment has risk inside and if you don't accept risk, are not ready to take risk, let's skip investment and hold your money. The pain people (investors) experience is they only or mainly think of opportunity, potential and profit. They are too naively by skipping risk because they don't like to mention about risk for their investment or they are real newbies who don't see risk at all.
of course it can go up if the person does hodl for a long time and is lucky to be scarce and there are many people interested in buying, but the question that should always be asked: if the person does hodl for a long time and has other sites implementing the same idea, then they will share the market with other customers and with that the interest of buying only on rollbit will not be very high, making them not have so much demand to buy your Rollbot and the person may have to sell for a small profit or even for the price they bought
In crypto, things can go up much higher than what we can imagine but everything will have a turning point, from bottom to top, from all time high to bottom.