I do two craft fairs a year. I have items priced from $3.00 to $60. Except for ornaments most items are in the $15 to $30 range. I had sales of over $1,000 on Nov 1st. Not bad for a $35 booth fee. I have done this show every year for the last 8 years. My ornaments sell for $5 and up and accounted for about 1/3rd my total income. If you want to have sales of $1,000 you need to expect to bring at least $2,500 to $3,000 or more in inventory. You also need to establish yourself and grow a customer base. I have many repeat customers. That will only happen by going to the same show year after year. Even with that there will be good shows, great shows and terrible shows. The public taste changes. Things that don't sell this year jump off the shelf 3 years later. There is no magic pill.