A Linode VPS with 4GB RAM costs $20/month, 4 times more then the 1GB instance.
Dedicated VM is $30/month for 4GB, but that's the smallest so can't compare there. But that's only a little bit more than the shared vps, so I'd consider it pretty reasonable.
A few years ago I couldn't find a $5/month option. The cheapest Linode was $10/month.
EDIT checked Wayback Machine...10 years ago, a 512MB RAM Linode cost $19.95/month.
Dedicated VM is $30/month for 4GB, but that's the smallest so can't compare there. But that's only a little bit more than the shared vps, so I'd consider it pretty reasonable.
A few years ago I couldn't find a $5/month option. The cheapest Linode was $10/month.
EDIT checked Wayback Machine...10 years ago, a 512MB RAM Linode cost $19.95/month.