Probably not a bad thing to ride in coach if you have entitlement problems.
I've been flying first class since I retired, but that's been only domestic flying where the seat is only about $750 more.
I have a flight to Europe at the end of the year, but I haven't gotten my mind around paying an additional $2,000 for a business class seat on KLM that only reclines slightly more than in coach. It might be worth it to me if it was on one of those planes where the seat fully reclines into a bed, but that's not the case on my upcoming flight.
-PJ