Help me convince my family that they're crazy 
My mom and dad have been set on the idea that they want to sell/trade the black '00 C2500 in on something for my sister...
Some background info. on her situation... she is finishing up her sophmore year of college out in Texas so she'll be there for at least two more years...
She needs her own vehicle that gets decent mileage, is easy to maintain (readily available parts, etc.), can make the 1,400 mile trip between Cali and Texas about twice a year and she has to be able to be comfy (she's about 6'-1")...
Ok so I've been saying all along that we need to get her a '01-'05 (depending on the mileage/price) standard cab short bed w/ the 5.3 and 4l60...
It'd get ok mileage, she'd be comfy, she could drive across the country w/o any worries and I've found quite a few in the sub $13k range...
OK... now my mom and dad are kinda set on getting her into a colorado/canyon because they test drove one the other day and now they're in love with them...
I keep saying it's a bad idea... those little suckers are freakin' expensive ($14k or more), they're gutless, I've researched and they don't really do that well on mileage (17-20mpg) and they're definately not bigger than a FSC even if it is just a SCSB...
So what's a good way to approach this "argument" (for lack of a better term)?
I've explained to them a standard cab short bed fullsize is a better setup b/c the mileage difference is negligible for how little she drives on a day to day basis and the colorado/canyon is more expensive so I just don't understand... any suggestions or should I just stay out of it and let them make a (in my opinion) bad decision?
I'm saying something like this... Standard cab short bed w/ the 5.3/4L60E w/ low miles...

My mom and dad have been set on the idea that they want to sell/trade the black '00 C2500 in on something for my sister...
Some background info. on her situation... she is finishing up her sophmore year of college out in Texas so she'll be there for at least two more years...
She needs her own vehicle that gets decent mileage, is easy to maintain (readily available parts, etc.), can make the 1,400 mile trip between Cali and Texas about twice a year and she has to be able to be comfy (she's about 6'-1")...
Ok so I've been saying all along that we need to get her a '01-'05 (depending on the mileage/price) standard cab short bed w/ the 5.3 and 4l60...
It'd get ok mileage, she'd be comfy, she could drive across the country w/o any worries and I've found quite a few in the sub $13k range...
OK... now my mom and dad are kinda set on getting her into a colorado/canyon because they test drove one the other day and now they're in love with them...
I keep saying it's a bad idea... those little suckers are freakin' expensive ($14k or more), they're gutless, I've researched and they don't really do that well on mileage (17-20mpg) and they're definately not bigger than a FSC even if it is just a SCSB...
So what's a good way to approach this "argument" (for lack of a better term)?
I've explained to them a standard cab short bed fullsize is a better setup b/c the mileage difference is negligible for how little she drives on a day to day basis and the colorado/canyon is more expensive so I just don't understand... any suggestions or should I just stay out of it and let them make a (in my opinion) bad decision?
I'm saying something like this... Standard cab short bed w/ the 5.3/4L60E w/ low miles...

