The market goes up and down like the stock market. Awhile back there were good deals on stuff as there was nothing happening in the SW world but with the release of ROTS, sellers are posting stuff at high prices. Then theres the sellers that think it's a gold mine. 
Some deals can be found but you have to look around and narrow your search to what you want.
Things take time to aquire, I have seen people take up to months or years depending on what there looking for.
I'll suggest I'm surprised at how cheap many things seem to be right now. My impression, and I may be wrong, is that in the run up to ROTS, prices were higher than they have been in the past week or two. My most compelling evidence is Droids figures, though they may be an anomaly. They were higher than normal up until this week, when lots have been offered and prices were lower. That may just be a reflection of more being available on ebay at a given time though.
But many of the last 17 have been relatively lower recently with Imperial Gunners and A-Wing pilots going for $30-40 loose rather than over $40 when I was buying (go figure).
I've also noted some very low prices for trilogo figures of late. Granted the cards may not always be good and one or two might be fakes, but still lower of late.
