1) Which strategy is better a) Repeating the same ads 2) creating multiple ads under the same campaign 2)Is it not better to market a single product under a single niche with a single ad since it would help get slow deciding customers to come back and buy.Hope my query is clear? I am talking about direct linking . your valuable feedback would help since my stakes are high!
i'm a little confused by your question but i will give it a shot... You should be testing multiple ads in each ad group. Using ad copy in the ads that is relevant to your keywords. Once you have a good ad, test a new one. Never stop testing. I can't think of a good reason to market multiple products in a single ad (even if they are in the same niche).
I'm a little confused by the question too, plus it would be better to move this thread to the PPC forum where it may get more replies.