How do I choose a Coinstar eGift Card?

How do I go about selecting the perfect Coinstar eGift Card for my needs? Are there specific factors I should consider, such as the retailer options or the denominations available? Do I need to take into account any fees or restrictions when making my decision? Additionally, is there a way to compare the different eGift Cards to ensure I'm getting the best value for my money? It would be great to have a clear understanding of the process so I can confidently choose the right one for me.