Any violin, viola, cello, previously purchased from Sam's Strings, LLC is guaranteed to be accepted as a trade-in toward future like instrument upgrades. 100% of the instruments original purchase price (not including any trade-in credit) will be credited to the purchase of a more expensive instrument at the List price, subject to following conditions: The instrument remains in the same condition as when originally sold by Sam's Strings. Normal wear and tear, such as wear to bow hair, strings, fingerboard, bridge, pegs, minor scratches, and open seams are acceptable. Moderate to major damage such as cracks, broken necks, broken edges, corners, sound post splits, etc, may either void the trade guarantee or result in a reduction of the instruments value, at the sole judgment of Sam's Strings, LLC. A service fee of $150 for violin/viola and $250 for cello will be assessed when you trade in the instrument. Trade-ins with consignments or towards an instrument on consignment is not allowed.