Not to defend GW but let's do a little math: When I started playing D&D The minimum wage was something like $3.00 an hour (Yes it was that long ago ) and the 3 rule books you needed to play the game sold for about $70.00 all together. (plus mini's or any other various items you might desire. Now the Minimum wage is up to almost $9.00 an hour in some places. What should a complete rulebook cost?
Checking the pricing on my books, and looking up release dates we have these figures:
1st Ed AD&D (1977) - $15 for PHB, MMI and MMII, $18 for DMG
2nd Ed AD&D (1989) - $20 for PHB, $22 for DMG, Monstrous Compendium/Monster Manuel
3rd Ed D&D (2000) - $19.95 PHB, DMG, and MM
3.5 Ed D&D (2003) - Initial run as above, later runs $29.95 PHB, DMG, and MM
If I recall the D&D box sets (as of 1983/Version 4) started at $18 for the Red box and topped out at $22 for with the Black and Gold boxes. Could be wrong there as I no longer own those. The Rules Cyclopedia was, I think, $30 or $35.
So, prices for one of the most well known hobby games really didn't inflate much until the 2000's. When you have a quality product that people enjoy, you can usually get away with charging more, but some companies seem to think all hobbyists have ridiculous amounts of disposable income to buy their products. I know I don't. I sacrifice other things so I can enjoy time with friends pretending to be things I am not.