This is one spiderman costume being sold on amazon and it costs $225.00.

This is an identical one on bonhoo.com and it costs $49.00.

Any difference in design or quality?

The definite truth is the sellor on amazon purchased the spiderman costume from bonhoo.com.

This screenshot of colorful spiderman costumes is from zentaiway.com.You can see the price from this picture.