字幕表 動画を再生する 英語字幕をプリント despite having the same nutritional benefits as other table grapes, cotton candy grapes are more expensive due to their limited season of availability, which only lasts from mid-August to late September. This means that to meet the high demand, production has to occur within a short time frame, which drives up the price. In the past, they have been priced at around $6 per pound, but more recently, they have been spotted at big box retailers like Costco for around $3 per pound.