i've had my eyes on galaxy s for a while, but seems like sl is cheaper but not so much down graded quality. can someone help me decide between galaxy s (now that the price drops) and nexus s?

i like nexus s coz it really has no lag, at all. i've tried galaxy s but it has lags, which i have no patience for. but nexus is more expensive and considering now the price will not drop. also, i heard samsung is slow on releasing android updates. will i be having this problem if i go with galaxy s? i'm not that expert at rooting phones but very keen on trying new things. also, i like a phone that can do everything when i need it without lagging.

when i choose a phone, i stick with it for a long time. now looking to replace my 3 yr-old SE P1i. arrggh!!! go crazy thinking about it!!