Possibly YMMV, I was at a Blockbuster and every new copy of TS:FP was at $19.99. The used copies were still at $34.99. There were a few flyers mentioning a sale for the weekend, but... I wasn't paying attention.
I remember picking that one up around the time the game came out for $15 at Walmart. It was the price for Timesplitters 2 but those boneheads mispriced it. lol