pioneer vs marantz

i have had my pioneer elite vsx 99 for about three years now. i bought this piece used for about 400 bucks. now as i understand this unit retailed back in 95 or around then for about 1500 bucks. i really like this unit but i just purchased at a estate sale a marantz sr7200 for 150.00 bucks. now this unit is alot newer from 2001 i think and it has all the surround options as well as an actual dvd button instead of the old bypassed LazerDisk button i used to use. i bought the marantz to throw on ebay to make alittle money but im thinking i should keep it and sell the pioneer. the pioneer is by far built alot sturdier but the marantz has a really cool remote and can do up to 6.1 surround. any opionions on what i should do. keep the pioneer or keep the marantz?