(concurring). I am in total accord with the result. The analysis of the merits, with which I have no substantive quarrel, perhaps manifests too much concern for these “worldly-wise businessmen advised by counsel.” The buyers may have been careless, indifferent, or merely overeager to close the deal during the negotiating process, but any such manifestation of lack of business acumen does not entitle them to seek relief through the judicial process. The defendants’ conduct, such as it was, did not sink to the level of rascality made actionable by c. 9 3A, § 11. Succinctly put, the curtain was up; the stage and the actors were amply lit; if the plaintiffs failed to see the play, it was because their eyes were not open.