quotestx doesn't make a bit of sense. So isn't the answer obvious? The name you have along with the .biz will be great for offline advertising. They compliment one another. If you know what I mean. It doesn't really matter what you have for online because they will be clicking on links, like, "click here for 3 ways to reduce your insurance rates by 30%" For offline advertising, like your hangers, just put in a short sales pitch on the bottom, along with what your site is about, and you're in. Maybe put the .biz in red and bold to give it more flare, and, for it to stand out more? .BIZ .com .info .biz .fm...it doesn't make a bit of difference which one is used.
Although I always prefer a .com site, this case the .biz is easier to remember and sounds better too.
Well QuotesTX.com is what "quotestx" means. Quote TX-I sell insurance in TX. I agree that offline the healthquotes.biz makes a lot more sense. I will probably have one redirecting to the other. Honestly, I don't think any online marketing would be near as cost effective as offline marketing.