Cheap chess clocks?

My local chess club is looking for a few clocks (3ish maybe?). We're don't have a huge budget. If there's any good clocks that people know are being sold online for about 20-30 dollars, it would be great. I hear analog clocks are much cheaper but lack the ability to delay. Is it still a decent clock to use?

I considered suggesting using a sundail, but I figured that I'd just get slapped in the face for that one.

Cheap digital clock (DGT960):

http://chessgamesshop.com/index.php?c=20&p=463

Cheap official FIDE clock (DGT chess clock 2010):

http://www.ebay.com/itm/Official-FIDE-chess-clock-DGT-2010-/171235240092

Cheap analog chess clock (Aradora chess clock):

http://chessgamesshop.com/index.php?c=20&p=606

Spend an extra $10 and get the DGT NA clock, I ordered it from Amazon Prime $39.97 delivered. I did much research and found out this clock was the biggest bang for my buck. I wanted a clock I could use in a tournament that has a delay which this clock does. Also looks very durable. Claims is lasts years and years on 2 AA batteries in the instructions. If I get 2 years out of 2 AA batteries I will be happy.