wrong thinking
say, Auction site A is very popular, has 200 users...but all ngiao
kia......not willing to bid high price
Auction site B may not have as high traffic, only 50 users....but
most of them are sincere buyers.....willing to offer high
price
u can monitor the sites to see the traffice and responses of the
category where ur pdt will be.......
make some effort to do research urself