It sure shows that your Realtor is committed to helping you market the home, which is great. Open houses are good for new buyers, or people not yet committed to buying, so they can peek inside lots of homes without wasting an agents time if they aren't ready to buy.
Doing continuous open houses (or anything else for that matter) without more activity or any offers is silly. Make sure to evaluate your listing price and your competition with your Realtor every week or so.
Opens every week ALONE won't sell your home. More needs to be done in my opinion. Make sure you talk with your agent.