There are losts of places. Target, Walmart, Macy's, nearly any store that sell appliances will have blenders. I would personally recommend Target though for its customer service representatives and for its lower prices.
One can purchase parts for the Osterizer blender at a number of different retailers. One can purchase parts for the Osterizer blender online at Amazon, Goodman's, and at the Oster official website.
A Bosch blender can be purchased from many retail outlets. Department stores such as John Lewis carry a range of Bosch products, or alternatively one can purchase the blender from Amazon or eBay.
One can purchase a margarita blender from websites, such as eBay and Buy Eappliance. Margarita blenders are also available from the Amazon UK website.
One can purchase a Cuisinart Smart Stick Hand Blender in a number of different stores. Chain stores like Walmart and Target always have a few available to purchase.
Ninja does make a great blender. You can purchase one for under $120 from Ebay.
You can purchase an immersion blender from the website www.amazon.com, they have many options to choose from. Another website where you can find an immersion blender is www.bedbathandbeyond.com.
One can purchase a commercial cooler online at various websites. One can purchase a commercial cooler online at websites such as The Webstaurant Store and the Sears Outlet website.
There are many places where one would be able to purchase commercial tires. One could purchase commercial tires from online shopping websites such as Amazon or eBay.
When searching online to purchase a Bamix brand blender, Nextag allows one to compare prices from many different online retailers. EBay also has listings for the blender. Amazon is also an online retailer that has Bamix brand blenders available for sale.
The song in the Ally Bank Blender commercial is called "The Old Country" by Daniel May. It can be purchased on iTunes.
There are many different commercial blenders available for purchase however, the best one for you will depend on what your primary purpose is, in buying the blender. Some blenders for instance, have high torque and special blades that are perfect for crushing ice, while others may be best at evenly blending several ingredients at once. You can find cross-comparisons of different commercial blenders by visiting a site such as blenderexpert.com: http://www.blenderexpert.com/commercial-blenders.html
You can purchase one from Amazon, for $130 easily here: http://www.amazon.com/Waring-PBB25-Professional-Blender-Stainless/dp/B00004S8F6.