Newbie here also. I joined Camping World in order to get the buying discount and through them I joined Good Sam for $1.00. So far, other than junk mail offering insurance, I haven't gotten much out of it. Although the monthly magazine has some good info. There are RV parks that offer discounts to members also, but again, I haven't had a chance to take advantage of any them.
I too have been trying to decipher which mags I want to subscribe to. This weekend I went thru some. I get Pop-up Times because we have a Flagstaff by Forest River high-wall PU, but I wanted a trailer mag, and so far Trailer Life seems the best to me. I'll post others this week as I sort thru all the ones I have picked up in the last year. The one from Good Sam's is OK, but not too exciting. There is a buying guide quarterly I like..I'll post the names later.
Susan