When you purchase a timeshare, you are buying an object for personal or family pleasure. It's not an valued investment like real estate. Unlike real estate property or valuable jewelery a timeshare has no resale value. Contrary to what the salesman says, a timeshares value does not increase over time.
A timeshares value, is a matter of perspective to it's owner. Travel and vacation memories may have more worth than any amount of money for some people. The timeshare can be thought of a luxury item. However, if you looking to gain equity from this timeshare purchase, you'll be very disappointed.
When you purchase a timeshare, you do not own land or property. Instead, you own space for a specific moment in "time". A bank will not accept a timeshare as collateral for a loan, it wants something physical with monetary value that can be seized if the loan defaults.
Seriously, think about it. The concept of owning a moment in time does sound pretty absurd.