Repairing a instrument cluster or speedometer usually is the best solution, but here are the pros and cons of alternatives.  

 

1. NEW CLUSTER.  These are only available for late model cars and will cost 2 to 5 times more than a repair. 

 

2. JUNK YARD.  Most instrument clusters fail with similar defects. So a junk yard unit will likely have the same defect, if not immediately, soon. Plus your mileage will need to be reprogrammed (typical cost about $195)  or you will need to put a mileage change sticker inside the door pillar. However, when you sell the car, buyers  are often skeptical  that the sticker mileage is really true.

 

And when considering price, consider the time and cost to replace a junk yard unit if it fails again.

 

3. Ebay.  See junk yard above.