Don’t park and don’t sell them – lol. You want to try and keep the content, even if its without affiliate links as one day you may come back. You don’t want to lose Google etc if you can help it, especially as your domain is aging nicely in the meantime. I think you’d regret parking it. Or selling it, personally.
At least wait and see what happens to HR4411 before you decide.
Thats my advice 
Cheers
Simmo!