I think the component packages are too pricey, but also the best part of the customization. 315p was one of the first ships I purchased (after my Aurora game package!) and I frankly hated it, I kept it a long time though melted it after 3.3.5 when I realized that it had the slowest QT drive in the game.
However, now that I got one in the PTU, and was able to customize it to not only Test colors, but now defaults to a much faster QT drive the 315 is a really fun ship to fly and I totally intend to purchase a new upgraded one during the Origin event, I have found myself flying it a lot in the PTU. I do hope they bring the prices down on the upgrades though, 1 to 2 bucks for the cosmetic stuff is totally good, but the component packages need to come down to the 10 - 15 range I think.