Won't ever be an issue:
Year Average Cost Per Gigabyte
2014 $0.03
2013 $0.05
2010 $0.09
2005 $1.24
2000 $11.00
1995 $1,120
1990 $11,200
1985 $105,000
1980 $437,500
Cost of 2.5 GB drive in 1996: $440
Cost of 200 GB drive in 2005: $140
Cost of 2 TB (2,000 GB) drive in 2015: >$100 (NewEgg)
Cost of 2 PB (2,000 TB) drive in 2035: ?? Probably>$100 (some future online website)
Data from:
http://www.statisticbrain.com/average-cost-of-hard-drive-storage/