What's holding back the prophesied low-end price hike due to IPv4 exhaustion?
I remember a few years ago when the last ARIN and RIPE blocks were assigned, there were wide speculation here and elsewhere that the lowest of the low-end prices may become untenable within years. To date that doesn't seem to have happened, with $15-20 a year VPS with dedicated IPv4 on sale everywhere, and only a handful of providers are offering NAT servers as a mainstream product.
What's holding the inevitable back? Were the IP hoarder hosting companies really really good at collecting the last stash? Is the rising price of IP leases subsidising the cheap customers keeping the stock IPs in good, justifiable use?