Yes.

Last two times only the cheapest one was worth it

My breakdown of the Frog event is based upon a price of 100 ingots for a charm and 100 ingots for a seal scroll, which are average prices for those items during sales (20% off).

Standard - 100 Ingots

30 coupons

1.8 Seal Scrolls

1.2 Charms

6 Lvl 1 Rune Stones

Value: 100 ingots returns 330 coupons worth of items and 6 lvl 1 runestones

Advanced - 500 Ingots

100 coupons

2.4 Seal Scrolls

1.8 Charms

6 lvl 2 Rune Stones

Value: 500 ingots returns 520 coupons worth of items and 6 lvl 2 runestones

Deluxe - 1000 Ingots

200 coupons

3.6 Seal Scrolls

2.4 Charms

12 lvl 3 Runestones

Value: 1000 ingots returns 700 coupons worth of items and 12 lvl 3 runestones

Platinum - 5000 Ingots

1000 coupons

18 Seal Scrolls

60 Tactics Pages

30 Lvl 3 Runestones

Value: 5000 ingots returns 4300 coupons worth of items and 30 lvl 3 runestones

So the question is for the Deluxe and Platinum purses are the lvl 3 runestones worth 25 coupons and 23.3 coupons each? At those prices you're breaking even for the investment. But lvl 3 rune stones are worth more then 2 visits to the Mysterious Cave, but i have no clue on their actual value.