Is all attachment equal in nature?

In the general view of "attachment" in Buddhism, is the _quality_ of attachment considered to be the same across all possible types of attachments? Or are there different qualities or degrees of attachment? Put another way, can one kind of attachment be considered "less bad" or "more bad" than another kind? Or is it all just "attachment" in a general sense, without distinction? For example: Is clinging to the nostalgia of an old childhood friendship any different than clinging to money or cars?