Why don't you give Wild a go and see for yourself? I mean if you don't have naxxramas or gvg cards maybe you don't really get it and you won't until next rotation, but if you have the cards and you can create good wild decks give it a go and decide later.
Some people here say Wild has "broken" stuff but really, it doesn't, it just has a higher power level which is actually cool as you can do the same stuff but with more options and sometimes even have other kind of decks, you don't play it and that's ok, but give it a serious try before making a choice based on other people opinion, even if all you are seeking is validation
I was thinking about a poll when I created the post, but felt I would get more thourough replies without a poll...but I added a poll now, seems legit.
There are many "regret" posts and I feel I might also regret it some day...I am a hoarder and I like my old legends and golden cards, even though I never play them. If I could just DE them, I would have done it a long time ago to help me be competitive on the ladder, which is really hard as a f2p player. I have been playing since beta (not consistently all the time though) and already made a DE mistake: When the beta ended I thought all cards would be wiped, so I dusted all classes but Shaman in the last beta days to build up my shaman deck...but there was no wipe...
I do occasionally enjoy playing my "All Legends" deck with 30 legendaries...
I don't think I will ever play Wild, because the mechanics there seem broken. I enjoy control classes and lenghty games with fatigue, but I don't enjoy games that take beyond forever and make use of broken mechanics/combos. I hate the meta in standard sometimes when all decks are the same.
I just can't do it right now...I guess I will keep it like I did before, I will not DE them all, but every now and then when I need some dust I will pull one of them out of the box and silently dust it without ever looking back.
I wish Blizz would just give us half of the cards dust value whenever cards rotate out of standart and make then undestroyable in the process. We could then craft and adapt to the meta and hoard at the same time.
Thanks a lot for all your opinions and advice, it really confused me. xD