How much are the Antminers Worth when you hit ROI? You still got your initial invested beans as comparison to the Antminers. But there is no guarantee that the beans won't fall in price and the profit from the miners may change, up or down. It is very hard to know Before what is going to be most profitable and very easy afterwards and say what have been most profitable.
I have no beans and no antminers either. But just wanted to say it is not easy to do these kind of calculations. Maybe you can do a compromise, buy some miners and buy some staking coins and invest some of the mining profits into staking coins. Spread your risks. Maybe one of the alternatives is going to be much better than the other but you can't say for sure which one is going to be best in future.
I have beans and antminers also
Sprouting beans basically not using any extra electricity , as the wallet is running on one of my mining rig without any problem 24/7.
For sprouting you need to buy Bean cash ( BITB ) on exchange, download the official wallet , send your BeanCash to your wallet , keep your wallet open for sprouting as much as possible, and you can make some income.
The only thing i did not liked when i started my bean cash adventure is , the wallet program need a lot of time for synchronizing with the Bean Cash network, lot of time i mean way over 24 hours ... actually it was around 2 days...
That sprouting calculator someone mentioned earlier is way off , i would say you can get 75% what that calculator says ... That is my own personal experience ...