Most recently, we hit 19th level and had our next rest period where we could sell out crap and go shopping around. We were again limited to 9th caster level, so we had to commission and wait weeks just to get our +3 armor and whatnot upgraded.
Not unexected.
Magic armor is not supposed to be an off the shelf kind of thing, especially higher level enchantments.
Except this time, I had acquired a Ring of Spell Storing. Pretty much my entire wish list was for buff scrolls that our party does not have access to since we don't have a bard or cleric. Righteous Might, Divine Power, Greater Heroism. So I'm seriously annoyed when the DM tells me that I can't find any of those scrolls, and our party 'face' was off doing his own thing, so I couldn't have use of his gather info rolls, nor could I use my +20something knowledge local.
So if no one can cast those spells I assume you are relying on Use Magic Device to use the scrolls then.
Hell, it took us a week to find the only 2 Hero's Feast scrolls in all of Sharn. And that is a spell specifically available as a spell casting service.
No it does not say it is specifically available it says how much it costs if it is available - there is another entire section in the DMG on how to "tailor" a setting to taste and what level of items are available in the different population (economic sizes) of different cities.
Being a primary melee character with a +13 BaB may have been my own doing, obviously, but its seriously annoying to be in a game world with flying ships and CR 20+ monsters running around all over the place where nobody higher than level 9 seem to be found. Grrrrr!
Well per the adventure path by the time the adventurers get to the levels yours are at they are highest leveled PCs/NPCs around. That is "the heroes who can save the world".
With only arcane casters in the party (or druids) why didn't they take any craft item feats in the first place? Or pick better spells as their "free ones" when they advanced or better yet make better use of the spells books and such that are listed in the adventure path itself as "treasure"?
Eberron has some very good setting specific items you should have looked at more carefully (like everlasting wands - items that allow any arcane caster to cast certain (lower level spells) 1 or 2 times per day (including normally divine only ones - like cure light wounds - well excluding the bard's version)
There are also a lot of psionic based items too.