How Much Are Zhu Zhu Pets?

I have some money... and i want to buy my kids Zhu Zhu pets for their B-day's.
Zhu Zhu Pets are out of stock EVERYWHERE and on ebay they cost 5 times more money than they would have in stores
Please help me.
How much are Zhu Zhu pets and their play sets? How much do zhu zhu hampsters sell for in stores?

Prices very from store to store but this is basically how much zhu zhu pets cost.

Value pack box of 3 Zhu Zhu Pets cost $24.99 this is now up to $ 124.99, it could be due to the popularity of the toy.
2 Zhu Zhu Pets were $14.99 now retailing for $89.99.
Single packs for $39.99 each or a combo pack including all four Zhu Zhu Pets could cost $ 299.99.
The complete Set of four Zhu Zhu Pets + Fun House Zhu Zhu Pets Accessories including the 5th hamster will cost up to , $179.95.

Originally they should be between 7 to 10 dollars, but since they are very popular and hard to find, people who get their hand on them sell them for close to 3 times what they are actually worth or more.