Product plcement

In my idea the product placement is good but not in all of the products. Changing the product is compulsory, because is these days the technology is growing and from the time and time the companies and producers has to change the products, so they need to advertise them but may be somebody like it and maybe some of the peoples don’t like it.If we look into some movies and TV-series we can see the ads which is in these movies and show us the products and how good they are accept this changing is risky but we have to admit and see from the other side which is the producers side, they have to make something new so they can offer to us. If there is no change so nobody is interested in the products because they know what it is.