Provide washer/dryer in unit or just leave the hookups?

[Joe Gee]

Currently upgrading a four-plex in I would say a "B" neighborhood.  Small 1/1.  

I'm trying to decide If I should provide the tenants with a washer dryer or just leave the hookups available for them to purchase as an option. 

I would save about $1100 per unit if I didn't provide them, and since it's on one water meter, I would be saving on the water bill.  

However I do want to make the units attractive so I can get quality tenants.  

Any experience on this?  

Thanks