To Sponsored Tweet or Not

So I had singed up for sponsored tweets which is a twitter service that allows you to offer to drop in a tweet and gte paid for it..i figure why not its just a link or two. So I finally got an email with an offer and I have to say that was an easy $30…plus My followers got a freebie invite to a Special Kmart was having. I’ve done 3 up  to date and made $90 from it. Now I will say  I think this is a great way to monetize a twitter account and big names like shoemoeny are doing it as well.  I believe as long as it is not abused and you start to drop in pointless tweets.  Why not… also you do let everyone know that its sponsored so a least followers know you are getting paid to to do the tweet