135 pieces for $19.99 and the weakest value floor in its class — 'WHACK!' is an apt name for what this set does to your wallet.
The parts alone are worth about 59% of the MSRP — the basis for this F price read.
OverpricedYou're paying well above the parts' value — $12 of parts for a $20 price.
The name is doing a lot of heavy lifting here. 'WHACK!' is a small Technic pull-back racer that hits an F on price and lands an overall D, and those grades are hard to argue with. At $19.99 for 135 pieces, there's almost no build complexity to justify the ask — pull-back racers live or die by their play gimmick, and this one doesn't offer much beyond the basics. There's nothing shelf-worthy, nothing technically ambitious, and nothing that screams 'I had to have this.' The 6.0 appreciation score is the one bright spot, meaning some sets do nudge up post-retirement, but starting from a value floor of 2.5 means there's not much ground to build on. Skip it unless it's deeply discounted.