Seriously, it’s not a bad option to look on eBay. I just sold two-an 8 Plus dark Olive for $4.50, and a violet for around 8 bucks. I bought them on impulse, thinking I was going to get those phones, and I have absolutely no use for them since I got the X. They’ll just sit in a drawer and eventually become utterly worthless. I’ve gotten similar deals from the buyer’s end as well. Just be patient, and really scrutinize the integrity of the seller.
Also, you can just vacuum out the interior of the case-I’ve yet to see embedded dirt in the microfiber lining.
Or you can just get it from Apple for full price..