A lot!
Today it would be $1500 for an elevator that would go 50 feet up. In 1800's it would cost $80.
$525 million
a shitload
Indoor skydiving is currently not available.
$7
alot
Millions.
A stair lift for the handicapped or a home elevator would cost from a few thousands to as much as fifty thousand, depending on the number of stairs, the weight of the person and how many turns there may be.
It could cost about 20k but it depends on where you buy it
it depends where you buy it somewhere like homebase or argos would be a cheaper option your looking around £100+
Jacuzzi is a brand name spa it is trademarked and already patented. Which makes it illegal to attempt to replicate.
The cost can vary depending on options (ie. lighting, decoration, air conditioning, etc.) and lift height. A rough estimate would be about $20,000 to install a home elevator.