Aue!

Also man koennte mit Deiner Definition anfangen:

When one is a member, one gets all the benefits.
Members get all the benefits
When you're a member. . . .
Join now and get all the benefits of membership.

Weiss nicht, ob es so das ist, was Du brauchst.

I guess what Baer wants is a sentence that sounds a bit more like a slogan, such as:

Be a member, get all the benefits!

(using Bob's ideas)

If you are in, you are better off.

maxxpf knows what I want to have ;)
I'm gonna take 'If you are better in, you are better off'
Thanks guys.

'If you are better in, you are better off'
doesn't really sound right to me (#3 didn't use a second better either)"

If you insist on using "better" twice, I think one might say, for example:

You better be in, then/so you are better off!

I think DerBaer did not read my answer properly and accidently added a second better.

for one thing, it shouldn't be "if" here but "when," as Bob has it in #1. Secondly, "in" alone doesn't mean much and seems very confusing at best. When you're in = when you're popular. So in my opinion, DerBaer has made a very poor choice no matter what. :-)