Is it just me shark or has the daily reward per masternode dropped by close to 20%?

Would that have anything to do with the price of ION falling because one cant sell off their reward each day without crashing the price?

Dead POS coins all have this same problem.

So going by historical data.  If one "invested" in a MN would the depreciation of the underlying asset be covered by the rewards or would one be taking a big fat loss?