Many styles of costume appear on the scene and depart over the years. If they are fortunate, a few will last more than 1 season. However within the total range of themes, one is perenial and that is the batman costume.
Perhaps because he is so well recognised and has been around the longest (batman costumes have been in the media from the 1930s when he fist appeared in
comic cartoon strips) that just kike other legendary brands, it will last for ever without much change. The only main difference will be in the fabrics used today both for the body and for the imitation stomach muscles.

We also have also seen how the brand eclipsed the sex appeal of batwoman and Robin our boy wonder, who prefers to stay more in the background.
And from the original character we also have the slightly ridiculous theme of costumes for pets. There is simply no end to the human imagination and it will stop trying to find new markets for a proven style.
The only other costume to have such mass appeal is the jack sparrow costume of The Pirates of the Caribbean trilogy. or princess costumes for girls

So now we have the prospect of your total family dressing up in one of the batman costumes for this coming year's halloween bash.
Then we also have the associated theme of Joker, so well played by Jack Nicholson in the earlier movie and then Keith Ledger, who sadly is no
longer with us.

This particular character has really transformed from the 40s and 50s and the batman costume is a colourful and menacing interpretation.
If you can't find a family member wanting to play this particular role, then give it to the dog !!
One extra advantage of buying one for your children is that the theme works equally well at christmas time and birthday parties. So if you think
long term then you get more value the if you were to buy a stricly halloween outfit.