Duqu has an active lifetime of only about 36 days, but this is probably to limit its discovery.

FORBES: Son of Stuxnet

Featuring electronic paper display, absolutely unique battery lifetime (up to 60 hours active) and patented USB hinge design.

ENGADGET: Russian YotaPhone promises dual 4.3-inch LCD and E Ink displays in Q3 of next year

Alternatively, active-adult communities don't require the upfront payments to cover a lifetime of care.

WSJ: Luxury Retirement Living: A New Senior Moment