Best answered by visiting:
 
http://drupal.org/about/new-in-drupal-7
 
But compelling is a pretty subjective thing of course. 
 
IMHO:   I would generally not encourage new users to be beta users of any product, so don't feel bad about adopting drupal 6 as a newbie right now.

From: support-bounces@drupal.org [mailto:support-bounces@drupal.org] On Behalf Of prothero
Sent: Monday, December 06, 2010 8:51 AM
To: support@drupal.org
Subject: Re: [support] Drupal 7 not ready yet

I'm wondering what the compelling improvement is for Drupal 7? I see feature lists, but for me, a newbie, I can't find that list of why Drupal 7 is so much better.
Bill

William A. Prothero

http://earthednet.org/




On Dec 5, 2010, at 11:05 PM, Roger wrote:

<snip>
FYI, I tried Drupal 7 (also as a new user) and found it not ready for
newbies to use. Many of the themes and modules have not been updated yet,
</snip>

I'm saddened by this also.
I want to start building a Drupal 7 site but even basic well known and
desperately needed modules and themes have the famous "I pledge that
this or that will be ready when Drupal 7 is released".
Surely, now that the code is locked (Drupalcon June 2010) we can have
some of the more well known modules.
My basic Drupal 7 was killed by a D7 beta update last week after getting
views almost working, had to reinstall the pre update release.
I'd love to be working with D7.
Roger
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