Wow, some of you guys like to steal. The Mutant edition of the Stampede is $400+ new. If the Monster short course truck is a slash it's also extra$$ new.
Used doesn't necessarily mean abused junk. If buying used you need to KNOW what to look for and check them over. Low-balling when you don't know just pisses sellers off.
Here's how I see it based on condition as they appear to be and guessing on decent brands.
Boat - $75 tops if good brand - can't tell what it is
New Stampede - $175
Ratted looking Stampede - $75
Short Course truck - $150 if Slash or better
On Road car - $125 It appears to be an HPI E10 Drift car
That's $600 total, and if the clean ones are in great shape it's very reasonable and way under new prices.