Depends on what you want (era, country); I pick whats on sale :) Sprue Brothers has some in their "Super Savers" category, Free Time hobbies has good prices, and GreatModels have occasional good sales. Lucky Model cant be beat for trumpeter, bronco and most AFV kits (if you like subs), but takes months to get to you. Finally, depends if/what PE you want to use. LuckYModels has the best prices for Lion Roar/Flyhawks. WEM/GMM I get frmo free time hobbies.