You might still get a better price at garage sales and checking local listings for people who want to clear out old LEGO sets quickly, but this is a pretty good looking deal as far as eBay listings go:

24 pounds of BIONICLE parts for $399.99 USD. The shipping is also looking reasonable too, at only about 27.00 dollars in the USA. That comes up to just under 18 bucks per pound, which usually takes a bit of patience to get on eBay, especially when factoring in shipping cost. If thats still looking a bit steep or just out of budget, you can also make an offer.