Since the NEM devs never disappointed us, I highly doubt that NEM's value will decrease in the near future but rather we could face the fact that a funding worth of 5 million XEM could be soon equal to 5 million USD!
They have absolutely nothing to do with setting the price.
I know!
The thing is we should find a reasonable cap for funding in order to make sure that there is enough remaining for each and every party that wants to create something for the NEM platform.