Guild meetings are that one day per month you can look forwards to relaxing with others who have the same passion for knitting that you do. Plus there's always something special going on...Valentine's Day Pizza Day...Pyjama Party...Christmas Gift Exchange...
Because it's helpful!
Guild membership gives you a subscription to Mailles - the monthly MKG newsletter which will be mailed or emailed to you.
There is also a list of contact people ready and waiting to help you with any questions you might have on almost any knitting technique. Even if your question is about crochet (like a cast-on or an edging) there is someone who can help you.
Don't forget about the free lectures and demonstrations at some of the monthly meetings!