I would say get what you can afford. Bushnell has a yardage pro out that's reasonably priced.
Bushnell® Yardage Pro® Sport™ Laser Rangefinder
In-view LCD shows target quality and distance read-out
Fully coated, Perma-Focus® 4X magnification monocular sighting
Quiet operation, auto-off
Water / shock resistant rubber-armor aluminum body
Ranges: 10-yd. minimum. 800 yds. reflective. 450 yds. to a tree, 200 yds. to a deer
1-button operation
Neck strap, carrying case
1 3/4 x 4 x 3 1/4". 7 2/5 ozs.
Uses 9V battery not bad for $154