There are two different 42" lawn sweepers on the Sears web site:
Model# 24222 (Craftsman 42 in. High Speed Sweeper) and model #24237
(Craftsman 42 in. Tow Sweeper). The latter is $30 more than the
former. I can't tell the difference between the two from the
specifications. Is there something that I'm missing?

The links for the two pages a

http://www.sears.com/shc/s/p_10153_12605_07124222000P

http://www.sears.com/shc/s/p_10153_12605_07124237000P

Can anyone help me out?

Thanks in advance!!