Under former provisions of law in California, a purchaser was required to prove that he or she acted in reliance upon representations made by the seller. (Grinnell v. Charles Pfizer & Co. (1969) 274 Cal.App.2d 424, 440 [79 Cal.Rptr. 369].) California Uniform Commercial Code section 2313 indicates only that the seller's statements must become 'part of the basis of the bargain.' According to official comment 3 to this Uniform Commercial Code provision, 'no particular reliance . . . need be shown in order to weave [the seller's affirmations of fact] into the fabric of the agreement. Rather, any fact which is to take such affirmations, once made, out of the agreement requires clear affirmative proof.' (See U. Com. Code com. 3 to Cal. U. Com. Code, § 2313, 23A West's Ann. Com. Code (1964 ed.) p. 249, Deering's Ann. Cal. U. Com. Code (1970 ed.) p. 142.)
The California Supreme Court, in discussing the continued viability of the reliance factor, noted that commentators have disagreed in regard to the impact of this development. Some have indicated that it shifts the burden of proving nonreliance to the seller, and others have indicated that the code eliminates ...