A toy farm for visiting children

I have a three-year-old great-granddaughter who visits us sometimes.  Long ago I got rid of all my kiddie toys except for one plastic rocking horse I bought for my oldest grandson at a garage sale twenty-six years ago.  I do have several kid-type books, which my great-granddaughter really seems to enjoy.  Still, I felt as though I ought to have something a child can actually play with when she's here.  Something that might spark her little imagination.
Our nephew recently came to visit with his little girl in tow.  Once again I was reminded that we need some toys around here, something to keep kids from getting bored.  
I remembered the farm set I had when I was a kid.  I loved it SO much.  And I started watching for an affordable toy farm set.  
Who knew that little toy farms would command such a high price?  Forty bucks is more than I am willing to pay for something that might get played with once every couple of months, if that.  Ah, but today we were in Orschelns and I saw a toy Bonanza Ponderosa ranch marked down to $15.  
Kids don't know Ponderosa from a farm.  

I put the barn together, and Cliff saddled the horses and figured out who is Little Joe and who is Hoss Cartwright.  He said, "You and I might have enjoyed this when we were little, but I don't think any kids these days will play with this."  
We'll see.  If all else fails, I guess Cliff and I WILL play with it.  I'll be little Joe and he can be Hoss.  Oh, and I get the cow, the calf, and the dog.