Well, if you're not interested in the wireless feature and don't need the dual probe there's this:
http://www.thermoworks.com/products/alarm/oven_temp_timer.html
This one is very inexpensive and would be a solid alternative to the Maverick.
The next one on my list is also a Thermoworks product but is a bit pricier than most:
http://www.thermoworks.com/products/logger/bluetherm_duo.html
I love the idea of having my thermometer sync to my iPhone but I wasn't impressed with the iGrill; this Thermoworks unit gives me that option and much more. It's one definitely commercial-grade: built like a tank, water resistant, etc. ... probably overkill for backyard use but that's never stopped me before.
Long story short, I don't think you'd regret the purchase of a Maverick, but there are some alternatives if you'd like to look elsewhere.