What you should do with this Lance will depend on how you play and keep your items, if you are a collector who can keep your items for years, keep it, as you will hardly find a better one even with legions of bots looking for it, but if there is the risk of going months or years without playing I suggest having fun in this ladder by auctioning it to know at what price it will reach at the end.
I imagine 1k would be a good starting price, I would do it because of my gaming profile for example

Just be careful not to allow battle.net to delete this item due to inactivity on your account.