>>6167894Is this thee pack in the pic? Because if it is, then yes. Most Eek Excited/Shivering Sad/Hauntingly Happy sets are going for $100+ on the secondary market.
BUT...
Most of the standard Inner Monster dolls were dumped to the clearance bin long ago. You may find them still in a ghetto K-Mart. If not, you can find them on eBay & Amazon for $10~15. A better value if you just like their gimmick, which is indeed very fun.