I've got to start contributing rather than just reading at some point so here we go;
I visited Amsterdam last week and stayed in the RLD (not my choice), I obviously did some window shopping and after reading this thread was curious and thought id do some experimenting. I've been before, probably about 6/7 years ago and had 2 great punts, I'll be honest and say that yeah I did have a little lack of respect for money and thought I'd write off 150 Euro's, I'd only of spent it on crap anyway.
DaveyB123 posted about how he does it, so I thought I'd give it a go his way, and leave it to my friends (only 1 ended up trying) to go about the touristy way as they don't punt regularly. Without typing out a full transcript, I essentially tried Daveys way with 5 girls and 2 of those I walked away from as I got the bitchy vibe and felt like they couldn't be bothered with my questions so why would they be any better when I walked in? The other 3 I agreed on OWO, sex and clothes off and 2 of those worked out just like that, I may have even gone over on time with one by a couple of minutes but she was fine about it, the only negative was the face she pulled during missionary, in hind site I should of asked for doggy with that one. The third was just shit, seemed very friendly and open to questions but once we got down to business most of the things we agreed on were now extras, I wasn't in the mood for an argument or a beating from Sergei so took OW and left for 50, not without bitchy comments about me being English and how I should understand it throughout

As for my friends experience, he did the tourist usual of "how much?" "50" goes in and then theres tons of extra's, she tried to charge him by card of all things but it was blocked, I convinced him to call it a loss when he came out and tried to head to a cash point.
In summary I agree that it has gone downhill but there are still some good ones to be found there, talking before and asking the right questions to asses first does seem to help, but its never a guarantee.