Are those price tags on e bay for real? What should I be carefull bout?

First you will want to check the items condition, some times good prices are due to the item being for parts or not working. If the item says it is in good condition and the price is real low, it probably has a reserve price. This means that until bids reach the reserve price set by the seller the item will NOT be sold. If the item does not have a reserve it might have a high shipping price. Often sellers will put a high price item up for sale at a really low price but jack up the shipping cost. Exp; if an item is worth $100 and is up for sale for $1, the shipping price will probably be around $99. This is a scam some seller try to trick buyers into purchasing their products. Also look at the time left on items that are only up for bids, If there is no reserve, the product is in good shape, and the shipping is fare it probably has a few days left on it and the price will go up. AND make sure to READ the FULL item DESCRIPTION the pictures are not always what is for sale! be cautious