Mr. and Mrs. Transient ordered a 2025 Blocklong model mobile home for $8,000 from the Home on Wheels Sales Corporation, delivery to be made on May 20. The Transients planned on spending an additional $500 to build a foundation that the Blocklong trailer had to have for maximum utility. Due to widespread industry strikes, the price of trailers rose dramatically in the early spring, and on May 10 Home on Wheels informed the Transients that the deal was off. The Transients shopped around and on September 25 bought a 2025 Behemoth model mobile home for $15,000 from another dealer. The Behemoth was larger than the Blocklong model (it had a basement and a laundry room), but it did not require a foundation. The Transients then brought suit. Home on Wheels defended by offering to show that (a) the Behemoth was selling for $10,000 up to September 5 when the price rose to $15,000, and (b) the Behemoth always sells for $2,000 more than the Blocklong since the former is a snazzier trailer. What damages can the Transients get under 2-712