Miles are not high but that price is.
I was looking at an 07 SRT8 also with 22k almost 23k miles for $24k but it did have a few problems.
If you plan to get it i would expect it to be in EXCELLENT condition, good luck
As others said, the price is the issue on that car, not the miles. I would try to get it in the $22K range. If it is highly optioned and in perfect shape and you like the color maybe go up to $25K max.
I generally don't worry that much about miles on the car, just the upkeep.
I look for a car that has been properly maintained. You can ask for the dealer receipts for service. Look to see if the guy puts quality tires on the car or el cheapos. Ask him if he ever used regular gas.