Most newbs who want to read it will go for the trades. I really don't see everyday fans spending whatever the going rate is for a #1 who weren't already collecting the series prior. Especially those that will be turned off by the differences in storylines. All they have known is the show canon, not the comic canon.
Say what you want about this theory, I really don't see how the rising prices of the books are not going to be prohibitive to the average fan, tv or comic.
I love the walking dead, read it from the start, but I will never own another #1 because once it went for more than $500, I'm out. I especially don't have over $2k for a 9.8. It's ok, yes I did have multiples at one time but they helped with putting out my first comic.
But these insane prices are mostly due to speculators and short term investors due to small print runs.
Just my thoughts. Take for what it is.