is this a wise decision?

[rhath127]

hi guys.....

i was thinking of selling off my 18" rims and getting either of these 2 rims. Also how much do u think can i sell these 18" rims with tyres for? (there are minor scratches on 2 of them)

currently have this:
18"


thinking of getting:

17"


or

18"


pls advise...i was leaning on the 17"'s coz with the 18"'s i feel the ride is too bumpy - every rough patch i feel when i drive. - I have a black Euro 2005 with ivory interior if that helps ur choosing of the rims.