I actually think the bars in WanChai can be pretty fun. Its more work, but there is a buzz I get from checking out the girls in multiple bars. I posted a report last month on my Filipina pick up from Laguna.
http://forum.sex141.com/eforum/v ... &extra=page%3D1
I paid $1000 HKD for 3 hours but she would have stayed overnight if I requested. This included multiple shots. I think for a 141 girl, it would be a bit less, but only for 1 hour (not sure about multiple shots). If you include the cost of beer then I guess the price can be double of a typical 141 girl but I like the trill of the hunt and the possibility of longer sessions - overnight with 141 girls seem to be very expensive.
I'd recommend that you do both. Hit the 141s during the afternoon/early evening and then hit the bars late at night. You may need the cialis to hit it this many times in a day but sorry, I don't know the situation on getting ED pills in HK.