Perhaps I should illustrate WHY (double rune exp) is a bad idea...

Remember that you have to consider the ramifications of every change. With the double-exp runes, this means that EVERYONE will wait and save up all their week's coins (minus what they spent on Thorsday) for runes, which is about 3/4 of all their gold.

Now think for a moment, 3/4 of all your gold for the full week, that's about 5 days' worth of saving. For those who have the 100mil-cap Cerb/Baal (twice a day), their gold earnings/savings will easily exceed 500 million for the week. Our server isn't even at that Cerb/Baal and I'm still getting 400m a week.
So instead of spending 1 hour a day in the rune Temple... (~70mil / day)
They spend 7 hours on a Wednesday in the rune Temple.

And guess what? They have no choice. They HAVE to spend all 7 hours in the rune temple for the double exp. Any other day is wasted gold because they need that rune exp! (and this 7 hours on top of their 8 hour/day job).

Next idea please.