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Very interesting question but I think you should be frying bigger fish .

Even if you add them as bullet points it's still text and I think Google is smart enough to figure out the context. Also since you're adding a description you shouldn't have any worries.

Personally I like bullet points when shopping so as long as you don't overdo it I think it's a good strategy.

Since you started your site few days ago ranking on the 28'th place is a good thing. It takes time for a new website to build authority and move upward in search engines.

I checked out your site and it had some decent content. Although more relevant content is always a good idea. Check out the Moz SEO guide ( http://moz.com/beginners-guide-to-seo ) and implement the things mentioned there and you'll see an improvement in rankings.

Directory links are not the most valuable links and it takes time for them to get indexed anyway. Try to get links from relevant blogs and website for more authoritative links.

I don't think having an exact match domain will be held against you. But it is not as beneficial as it used to be.

Check this article which pretty much covers everything related to micro-formats https://support.google.com/webmasters/answer/99170?hl=en

If you're using WordPress then you can use this plugin which has support for pricing and rating but keep in mind that they are not visible to the user. http://simplemediacode.com/wordpress-pugins/itemprop-wp/

I usually add them manually so I can format them and display them nicely to users while still showing micro formats.

If you're using the WordPress SEO by Yoast you can easily do this by adding %%page%% to your title template. It appears as "Page 2 of 5".