Car rentals are indeed crazy high--I just booked a compact rental car for more than 100 bucks a night! But in this case, it wasn't greed, or at least sheer greed, but the pandemic that caused a shortage of cars. Early on in the pandemic, no one was traveling at all and rental car companies suddenly had no money coming in. Hertz nearly filed for bankruptcy. At the same time, people were understandably unwilling to use public transit, and many urbanites who were previously happily carless wanted a used car right away, driving up used car prices. So, the rental companies sold off their stock of cars for cashflow, keeping them afloat at the time. But now, travel has resumed with gusto, and the rental car companies have much diminished fleets. So...very high prices while the companies recoup their COVID losses. Stinks, of course, as I gritted my teeth and booked the car. I was advised to book at an airport because the stock of cars is higher there than at other rental offices. But I am still concerned that I could arrive, having paid for my car in advance (!) and find no car at all at the end of my Amtrak trip. At least I'll be at National Airport, where I could check on a flight to my final destination in Pennsylvania, or in the alternative take Amtrak to Philly and change to get to Harrisburg. More trains, amirite?