Like John said above, you can use a camera as a home unit that all your pics get delivered to. But, don't do that, cause the cell unit is not only cheaper than a cam, but you'd lose a camera making it a home unit. You don't have to have a cell subscription for the home unit to work.
My first cuddelink purchase was 4 cam and 1 cell unit. I used it for 2 years without cell service, placed the home unit where I parked my truck.
Then I'd sit in the truck with my laptop, viewing all the pics for along time. No stomping up my area, which is awesome.
Finally got the cell service, and I'm fine with paying for it. Got 10 cams now on the same system, so yeah, it's $40 a month for unlimited, but you could likely get by with a $20/month plan with just a few cams. You can turn the cell service off at any time, no contracts. I've had about 5 different manufacturer cams over the years, and these cuddebacks are as good as any I've ever used so far. There's a little bit of a learning curve, but there is with all cams.