Well, if it was me, no way. $880 is a lot on money to me. That is more than I pay in rent each month.
Sure, I like first class but biz class is good, and you can still get into lounges, right? To me, just about any lounge is better than no lounge. I'm not super picky. But then again, I'm a low level domestic traveler.
I suppose if $880 to you is like $50 to be, then go for it. It's your money. Spend it how you please.