The rides at Morey's Pier are so expensive; it worked out about $5.60 for the Boomerang, and the same for Vekoma SLC - well I wouldn't give you a quarter to ride either of those!
The Great White was closed (ahhhhhhhhhhhhh), so I didn't bother going on anything! But I would suggest the 3 day pass otherwise you'll be paying through the nose!
If you haven't got any accommodation check out the Starlux - it's a bit expensive but it's really cool!
My experience of Dorney was that all the kiddies were in the water park which meant the lines were okay - but if it's not hot then you could have some long lines!
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Parks done 2001: BPB, PKI, SFWOA, CP, KW, HP, DP, Knoebels, Astroland, SFGAdv, SFNE, SFA, LC, Moreys Pier, PKD, PCW, BGW, DMP.