The only downside to the Realforce is that the hump in the force curve is broad. It doesn't so much define the activation point, it surrounds it. That could be seen as a disadvantage for gaming.
However the Cherry blacks don't have any tactile feedback at all, so the Realforce still wins on that count.
I too think the Cherry browns would be enough for all your needs, so that might influence your price comparison. But if you stump up the cash for the Realforce you won't regret it. They feel better and sound better, a touch of luxury to be enjoyed. Just don't spill drinks near it.
I think that may even be your deciding factor - how much respect do you show your hardware? If you look after it and make things last a long time, get the Realforce. If you want to chuck it around and risk damaging it - get a Cherry brown board, it will hurt less if you have to replace it.