johnw,
be aware, many of the smaller RV type parks that are offering lower rates for monthly or seasonal, or even yearly, "camping" are being taken over by some rather seedy folks.
I've seen it everywhere from AK and WA to CA and AZ. Sometimes not the whole park, but the affordability aspect brings in some undesirables, and their grubby kids, dogs, cats, bicycles, druggie friends.
Be aware.
Geno
PS some of that knowledge I mentioned is first hand..............trailer living is not all it's cracked up to be at times.