Epson Pro cinema 1080 UB , or 8700 UB

I have an 1080 ub and just called epson said i qualify for an upgrade since i called in today about my projector overheating i forgot to clean the filter , but its all fine now , so should i take the 8700 ub or stall with the 1080 ub thanks

I can get the 8700 ub for free upgrade if i send it in this last time so thinking of getting the 8700 ub ,

I have a question also the Black Diamond 0.8 92" Fixed Screen I can get it for $400 plus my driving cost to get it would be around $200 should I get this screen , is $600 invested in it worth the price. Best Buy sells it for $2499

thanks in advance guys