I love my gmail account. Of my personal email accounts, it is by far my preferred option.
But after having the account for many months, I am amused by the occasional article offering "invites". While I got my account through such an article, I am pretty well aware now that all I would have had to do was ask if anyone had an invite and I'd have one just as quickly.
Now, this looked like smart marketing on google's part when it started the service. But now, it's just plain silly. There's no value to invites, and everyone I know has more of them than they know what to do with. It's time, in my opinion, for google to end the whole "invite" method of signing folks up and just start a signup link on their main page. But that's just my opinion.
By the way, if anyone needs an invite, I have a few (lol).