Yes you can send directly from your PC. No question there! Below are a few things for you to consider. With Clip Magic Email:

• You can personalise each email - "To", "Subject" and body text fields - and avoid annoying recipients through exposing their email address to the entire list
• Your emails won't lock up your PC while you're sending, clog up your Sent Items with the outgoing messages, fill your Inbox with bounced messages or upset your ISP mail service provider
• Professionally designed email templates look good in over 20 email clients
• You don't need to be an HTML or software expert
• The risk of your email account being blacklisted for spamming is virtually eliminated
• You can preset the date and time to send the campaign.
• Managing unsubscribes is a 'one-click' process for the recipient

The biggest difference for you however only becomes apparent after you send with the reporting and analysis tools. From an article on the Microsoft Small Business Center website entitled "The Benefits of Email Marketing"

"E-mail marketing is one of the most powerful marketing tools available today... The benefits derived from most types of marketing and advertising are very difficult to measure. With e-mail marketing, however, you can easily measure the numberof e-mails sent, e-mails opened, bounce backs, unsubscribes and click-through rates..."