I actually liked the ending (and I'm Dean girl) but it endend how they always wanted ,Dean going down in a blaze of glory (although d!eing by the rusty nail wasn't the best storyline it is still a d€ath in a battle) and Sammy living a family life as he always wanted(withouth hunting)

As you can see from my name I am a huge fan of SPN since season one and it is still my comfort show.The show I watch when I'm down or feeling sick to cheer me up .But I agree with this. its better to stop while they were still good then continue and ruinimg it all. That happend with NCIS (I loved that show also from season 1 to 12,I could cope with Ziva(Cote se Pablo)leaving the show,bit after Tony (Michael Watherly) and Abby(Paully Perette) left the show i stoped watching ,cause to many actors changed and that is just not the same show anymore.So I am afraid it could happen to SPN as well if they continue .