According to the sources provided, the price of generic Lipitor (atorvastatin) varies depending on the pharmacy and location. GoodRx [2] states that the average retail price for atorvastatin is $14.18 for thirty 20mg tablets. However, prices can range from $5.94 to $25.99 depending on the pharmacy and location. SingleCare [3] reports that the average price for a 30-day supply of atorvastatin is $11.10, with prices ranging from $3.30 to $24.00. Additionally, Drug Patent Watch [1] reports that the patent for Lipitor expired in 2011, allowing for the production and sale of generic atorvastatin by multiple pharmaceutical companies. As a result, the price of generic atorvastatin has decreased significantly since then. It is important to note that prices may also vary based on the dosage and quantity prescribed. Patients are advised to compare prices at different pharmacies and utilize discount programs to find the most affordable option for their specific needs.

Sources:
[1] https://www.drugpatentwatch.com/p/tradename/LIPITOR
[2] https://www.goodrx.com/atorvastatin
[3] https://www.singlecare.com/blog/atorvastatin-without-insurance/