Pondering Life insurance

I've been thinking lately about getting some life insurance quotes, see what it would cost me to be insured. I think it will take some looking around though and a lot of reading of "fine print" before I decide on one. I often wonder if it's even really worth it, I mean lets take funeral insurance for example. I know that $5000 worth of cover costs $2.30 a week. If I assume, like the insurance company does that it's most likely I'll live on to at least 86 then I can produce the following equation.

$2.30 per week times 4.3 weeks in a month equals $9.89 paid per month.
$9.89 per month times 12 months in a year equals $118.68 paid per year.
$118.68 per year times the expected 60 years of life left equals $7120.80

That means if I simply put the same insurance fee away in a bank account every week (I could set it up to be automatic for example) for the rest of my life and I did live an extra 60 years then I'd have $2120.80 EXTRA then if I'd gotten funeral cover. I wonder if it's the same sort of savings with life insurance? Never know until I find out I guess. And I suppose there is the fact that I don't know how long I'll live, I could drop dead tomorrow. Hrmmm... lots to think about, best get those quotes.