If you already have a cellular contract you should first check with your carrier. If you do not know of a local carrier you can do an on-line search the phone and see who in your area sells that style or brand. Otherwise www.htc.com provide carriers that sell that phone as well as retailers in your area.
Try the website of the company who developed or sells the game, or ask at any retailer selling it.
The producer produces (makes) the product, and sells it to the retailer (the store). The consumer (you and me) goes to the retailer and buys the product.
Cisco phones can be found in multiple places online. The company itself sells the phones. A person can also find them on Amazon. The other main retailer of Cisco phones is VoIP Supply.
A wholesale buyer is a person or business that purchases from a wholesaler or manufacturer and then sells direct as a retailer or sells to a retailer.
Either way is fine as long as the discount retailer is legit and sells the good product and not some "look alike" http://www.samstownecenter.com/directories/computers.htm
You can find a store that sells a variety of guitars by searching online for music stores in your area or by visiting a music instrument retailer that specializes in guitars.
Walmart
No, usually a warranty is valid for the end user of a product and commences on the day of sale to that user.
Depending on the type of product in the TV advertisement one can find the product at local retailers like a drugstore, sporting goods retailer, grocery store, building center, automobile retailer etc.
a retailer
One can purchase a metal wallet both in person at stores or online from retailers. Walmart is one store that sells this product. Amazon is an example of an online retailer that carries metal wallets.
A store retailer is considered the middle man in a sale; therefore, there are other levels of the sale to be considered. The retailer buys from the wholesaler then sells to the consumer. So, the order of design is theproduct/service, the wholesaler to the retailer to the consumer. The price the consumer pays suppose to cover the costs of the retailer, the wholesaler, and the product/service itself.