Because even if there is ongoing trading competition at binance, seems the price is not picking up, though there is slight increase. I bought mine most above 100+ sats, and only 41sats right now (not considering how much it is equivalent in USD). So better earn interest while waiting for your target price. Don't know why this token is not gaining the price, maybe you just need to enjoy the benefits from holding it.
Freebitco.in continues to innovate by now also offering interest on FUN tokens. Searched it on the site, but it seems that it is not yet available. I also bought a portion at 100 sats but bought some more when the price dropped just to lower my average buying price.
On a side note: won today 4800 sats on the free WOF spin!