"I have many pieces of flexible track and find them very useful with my larger track designs. They allow your normal straights and curves to bend to exactly what shape you want. It is VERY important to only use 1 or 2 flexi tracks joined together so that your engines dont lose traction. I normally use 1 flexi part to 2 pieces of track and find I do not have any loss of traction. I agree that track pieces should be included in Pick-a-brick and you shoule be able to order 1 piece at a time."