For varying hardnesses of vacuum, you can find a partial vaccum of 4 psi at 30,000 feet.
Which is enough to drop drag a lot, and still maintain lift in, say, commercially viable air transportation vehicles.
Lowest costs I've seen to LEO are about $1,000/lb. Suborbital flight isn't much lower than that, and we're still looking at something on the order of $10k - $1m per passenger at rates like that. Affordable to some, but (considering you've likely got a baggage, life support, and related allowance) pretty pricey all the same.
$10k is comparable to Concorde, as I recall. I consider that a very optimistic estimate.
Which is enough to drop drag a lot, and still maintain lift in, say, commercially viable air transportation vehicles.
Lowest costs I've seen to LEO are about $1,000/lb. Suborbital flight isn't much lower than that, and we're still looking at something on the order of $10k - $1m per passenger at rates like that. Affordable to some, but (considering you've likely got a baggage, life support, and related allowance) pretty pricey all the same.
$10k is comparable to Concorde, as I recall. I consider that a very optimistic estimate.