Im heading to Botcon this year, and an wondering if i should bother looking for stuff on ebay between now and then for some stuff I will probably find at the con. On average would i get a better bargain in person or on ebay? Also there are a number of G1 parts im looking to get, and $5 for a gun on ebay may seem steep. Are there alot of parts for sale at cons? and if so cheaper than what i can find online?