It mostly depends on specific items. Some things on certain servers are way cheaper than others, while other items on the same server are alot more expensive than average. I wouldn't doubt Stromm is expensive for lower level gear, since it was originally the new player server in purpose and description. I find Tunare one of the best for less expensive lower-level gear, but I don't play on all servers, so there may be others. The main servers I play on are Druzzil Ro (Xev) and Tunare (E'ci). I used to play some on Firiona Vie and Stromm, but no longer do.
Generally if prices are high on a server, you can still afford to buy needed items, you just have to find what sells for high prices for the effort involved and farm those items. It's the same on less expensive servers. It's all about finding what sells good for the effort and buying what is reasonably priced for the effort / quality. 1KP, is not alot for a great item, nor a rarity. 1MP is not uncommon for extremely rare items (ones which no longer drop).
Also, with new expansions, especially The Serpent's Spine, there are plenty of relatively easy quests for excellent armor.
Yther Ore.