Not really for me, the whole jealousy thing would be a big issue. As I see it I can't separate sex from love. It's like ice and cream, apart is nothing special and booring, together they make your whole world rock.
Anyway, the swinging lifestyle is not for me.
On a side note: Annoying that swingers call it The Lifestyle just as BDsM and D/s people call what they are doing The Lifestyle, could get confusing.