I am a catchphrase or three

The grass is always greener. You always want what you can't have. I can't think of a third.

I could have had something long ago. But I wasn't sure I wanted that something. I kinda toyed with that something, held it in my hand, pictured my life with that something, was that something really worth the hassle? And now I can't get that something at all, can't find it, can't see it, can't even ebay it.

Sigh.