I think why Tron is popular is:
1. Launch of the Tron 4.0 Blockchain. with the privacy protocol feature to make transactions "more disguised".
2. The popular blockchain-based social media, Steemit, has switched to the Tron blockchain.
3. TRON Comes to Samsung Galaxy Phones via Blockchain Keystore
4. Opera browser already supports Bitcoin and Tron.
5. TRON (TRX) Increasingly Popular, US $ 14 Million per Day for Online Gambling Affairs
Tron (TRX) is ranked 18th on Coinmarketcap, Volume is $ 895,035,566 and Market Cap is $ 2,098,455,956 USD which means the transaction is still relatively low. (less enthusiastic)
According to my prediction using Trend Line Forecast, Tron is very profitable from the current price $ 0.029167 will increase to around $ 0.0639 in 2021.