Yamaha guitars & basses are good, but like what Tany said, overpriced.
Here's my opinion why:
As you may or may not know, Yamaha operates with Music Plaza as its storefront, and Kinderland is related to Yamaha.
I talked to my dad about Yamaha and he said that their marketing strategy is to introduce music education to kids. You see, parents believe that music enhances their children's intelligence, that's what research claims (imo, it's partially true). So, they seek out Yamaha's music schools, enrol their kids and purchase their musical instruments from there etc. Examples are piano, classical guitars, etc...
Yamaha Music Plaza shops keep a large inventory of products to facilitate their buyers. Imagine the costs related... Inventory holding costs, rental, utilities, manpower, etc. Since Music Plaza is together with Yamaha, they can influence and adjust the price according to their needs/wants.
I personally feel that Yamaha's approach to guitars/basses is severely flawed. Luther is their authorised dealer, and even his prices are lower than Music Plaza's. Yamaha should relinquish their marketing and sales of guitars/basses to Luther, because he is THE MAN! (I respect him a lot, one of the rare decent & honest guys in the local guitar/bass industry) If you don't catch my drift, Yamaha is preventing Yamaha electric guitars/basses from achieving success & popularity. An irony, eh?
Take the GHS strings for an example. $10.90 for a pack??? If I remember correctly, Luther had 3 Burnys a long time ago. If memory serves correctly, the RLG-45 costs $650 at his store, while Yamaha Music Plaza is selling it at $900. While I was doing my Jpn mktg research, the lowest selling price of the RLG-45 is JPY33,000 at KinkoMusic. Now that's very cheap...