I'm assuming that $100 is the median, and the bell-curve flows from that, depending on time of year, locale, and what you define a "$" as (I'm in Canada, for example.) So, maybe slightly more to pay LucasArts/Disney for the privilege, as I agreed was a possibility in another thread.
Not to mention that retail is an art more than a science. Prices will vary according to the perceived market.
But $150CDN for a made-in-a-special-economic-zone suit is not unexpected in some middle-class luxury good markets.
Swim suits are one of those things where the price seems inversely proportional to the area of fabric and length of stitching.