Unless you plan to use the Timeshare property yourself then in my opinion no they are really not worth it.
I bought into a Timeshare years ago and thought I would get rich doing so but in reality I lost money on the Timeshare and it was costing me more money to keep the Timeshare than it was making me money.
So I decided to sell the Timeshare at a loss to get out of it.
Some people do really well buying Timeshares for investments and make lots of money but a lot of people also lose money and fail to make any amount of money off their Timeshare.
If you go into the Timeshare knowing what you are doing and you're lucky you could make lots of money from your Timeshare.
But don't be surprised if you do lose money on your Timeshare.
Most people are looking to sell off their Timeshare because they are losing money so be aware of that.