I bought one 20 yrs ago because I thought it would become useful. I've never had to use it. It's just taking up space. I agree. You should buy what you need wh

I bought one 20 yrs ago because I thought it would become useful. I've never had to use it. It's just taking up space. I agree. You should buy what you need when you need it not because it's cheap and you think it will be useful. If you must then put the money aside in a savings account ready to use it if you need to buy the item.