Short term cows

What is your view on buying short term cows.  I am going to look as 35 head of probably 8 or 9 year old cows on Saturday.   These cows have been run on the Red Desert of Wyoming; I will be putting my cows on irrigated pasture next summer, so I will have soft feed for them to eat.  He is asking 900 per head, but I was thinking starting at 750, but not going over 30k.  I would like some opinions here, 

 

Thanks in advance.  

 

Jay

Short term cows