That's low miles. If you're hot to trot on a '15 (bear in mind it's still going to depreciate relatively quickly - if that matters), the least-expensive certified '15 I see on the web right now is $54,995 with 58k miles.
... With that said, it's a buyer's market for virtually any car right now. There's a
storm looming on the horizon of 100,000s of leases coming back to the manufacturers in a time where they're actively seeking ways to increase profitability and market penetration into electrics and hybrids. With this known, some dealers are going to continue to price low-volume cars like the LC wherever they please and let well-heeled buyers wander in and pay asking for stuff like this.
But - I posit that in spite of the fact that the dealer with a 7500 mile '15 probably wants to see $65k+ for that truck, that's not a good value. If it were me (not that I'd look for a 15 - 13 and 14 are configured identically and I'd much rather let someone that's not paying attention eat another $10-20k of depreciation on a virtually identical truck) - I'd negotiate for $55k + TTL on that truck, or another truck, until someone bites.
That's my $0.02 - a lot of folks on here might cry foul and say that's way too low, but remember that the price is what a buyer's willing to pay.

For my dollars, I'd be more likely to look into something like
this 2013 with 75k miles and negotiate for Toyota to cert it for $43k + TTL.
Remember that Toyota's Certified program frankly sucks; I bought a certified truck, it was only good for 12 months or 12,000 miles, and in my case I have had to have the truck into my local Toyota dealer no less than 6 times in the first year at total repair cost of well over $3500, BUT, had to fight them tooth and nail every step of the way. FWIW, my issues were related to buying an east-coast truck, so, don't do that.
Either way, assuming you aim for something like the truck I linked above - you're looking at ~$20k+ saved for a truck that's taken the bulk of its depreciation and now will gracefully slide into the $30s over the next few years. Even with 10x the mileage the truck I linked above should drive identically to the low mileage model and do so for another 300k+ miles.
If it's your thing, $20k is a lot of modding!