Urriak Uruk
Gaming is fun, and fun is for everyone
Two words: Marvel Unlimited. If digital delivery is good for you, rather than paper, Marvel Unlimited gives you access to a GIGANTIC back catalog of titles. $70 a year - so less than the cost of 20 current issues.
It does not give you a clear jumping on point, but it solves the affordability issue - and if you are confused by mention of past continuity... you can go and read it at no additional cost!
It sounds good, but I get headaches when I look at a screen too long, and my job is computer-facing, so when I want to read I only want paper.
Also I'm not sure the answer to getting a newbie to read comics is a $70 annual subscription. That's a big barrier to entry for non-comic readers.