What is the test for damages for breach of contract for the purchase and sale of real estate?

It is relevant to note that in Semelhago v. Paramadevan, Justice Sopinka writes at ¶ 20: While at one time the common law regarded every piece of real estate to be unique, with the progress of modern real estate development this is no longer the case. Both [Page 65] residential, business and industrial properties are mass produced much in the same way as other consumer products. If a deal falls through for one property, another is frequently, though not always, readily available. It is no longer appropriate, therefore, to maintain a distinction in the approach to specific performance as between realty and personalty. It cannot be assumed that damages for breach of contract for the purchase and sale of real estate will be an inadequate remedy in all cases. [My emphasis.]