I think that the amount of micro management required to tend to these crops aren't really worth the reward currently. You don't have to sit and watch the electo-furnace, you don't have to sit and watch the miner, you don't have to sit and watch the nuclear reactor because you already know when to turn it off, but you BETTER watch that cross breeding stick.
For the love of...you are literally watching GRASS GROW out of fear that ONE WEED will spell Armageddon for your crops. I mean when you have to break out a book to pass the time while playing a game...