Which toy story characters have the most valuable merchandise?

The only verified data available is a brief description of Toy Story 3 and a note about a corporate disagreement between Disney and Pixar. No details about character-specific merchandise value, sales figures, or collector prices are included in these sources. Consequently, there is no evidence to identify or rank characters by the value of their merchandise. To obtain such information, additional sources such as official merchandise sales reports, collector market analyses, or reputable industry publications would be required.