Is it good?

Yep, You can have. But you need to register seperately. Try here www.goresellers.com/ . Cheers!

It's a good idea. Especially if you have a website which serving your member. For instance, an online banking's website usually has some domain names. It use for preventing mistype and phishing. Also, how to spell your domain would need you to use several names. For instance, if your web use a word of 'centre', you'd better buy another similar domain name which using 'center'. It's required for brand awareness. Have a nice day and happy mylotting.

If you can afford it, why not? Some people buy one main domain name and a few others that are close to the main one. For example, your main domain is rajafranklin.com, you can also buy rajfranklin.com or rajafrank.com then just redirect these other two links to immediately go to the main website. So when people who want to go to your site make a typo and type in rajfranklin.com or rajafrank.com instead of rajafranklin.com, they will still go to rajafranklin.com. In a way, this helps drive more traffic to you website.