Buying your first Longboard

Hey guys, ive been surfing for a few months on a 7"3 mini mal and im thinking of buying 2 new boards, a shortboard and a longboard so I can learn all styles of surfing. After watching Big Wednsday last night im really keen on buying a longboard, any advice on what to get?
Ive seen this 9ft1 classic malibu board in my local shop reduced from £699 to £599, im not sure how good that is because im not use to longboarding
Ive seen this 9ft1 classic malibu board in my local shop reduced from £699 to £599, im not sure how good that is because im not use to longboarding