You might wanna do that math again.

I only have 4 PSP games and i don't pirate games. I am just not interested in the games that are out. Sadly enough, the game i play most is Tiger Woods PGA Tour 06.

I also blame piracy though. I know about 10 other people that have PSPs and the only actual game they have (About 8 of them) is Liberty City stories.

There are a lot of factors involved with the PSP's low attach rates, not just piracy.

One fact that seems to have gone unmentioned is that handhelds traditionally have lower attach rates than consoles anyway, so the only systems we can ever really compare it to are the DS (a device that outperformed even Nintendo's expectations) and maybe to the GBA to some degree (though that would probably be impossible, considering the issues we have traking its software sales weekly).

There is also the lack of killer titles for the system, with only a handful being A titles. Most are B games and ports, and that just does not serve any system well. When S-E's big support starts to hit the system should be a bit better off. But this still kinda just extends from the fact that even Sony makes it seem as if the device is made for multi-media rather than handheld gaming.

Piracy is an issue, but it's by no means the only one and its not even likely the biggest one. People do keep buying the things even though Sony keeps changing the firmware to make hacking harder. While people on this site may know a bunch of pirates, you probably also know a bunch of people that buy/would buy more than 2-3 games a year. That not only (badly) fails to describe the typical video game consumer, but also indicates that no one here is in touch with the market the PSP sells to the most.

The PS1, PS2, Game Boy Advance, and DS can all play burned games without the user having to open up the consoles or install a modchip, and they all have great software sales.

Besides, having to open it and install a chip has proven to do little to stop anyone. If someone wants to play burned games and all that's standing in their way is installing a chip, then they'll either find out how to do it themselves or find someone who can do it for them. All of the PS2's and Xboxes with modchips in them should make that pretty clear.

I get the impression that many people buy PSP to play emulated NES and SNES-games. Thats kinda ironic

 On those other systems you have to order a mod chip or special cartridge to pirate games. With the PSP, all you need is a memory stick and a computer.

i have:
Trauma Centre
Rocket Slime
MKDS
TEtris DS
Brain age 1
Brain age 2
Meteos
P: Diamond
EBA
Ouendan
Kirby: CC
AW:DS
SPPeach
Electroplankton
Jump superstars
Nintendogs
Worms open warfare
Castevania DoS
castelvania PoR
AC:WW
metroid:PH
Band Brothers
New super mario brothers
bomberman

oops, only 25, my bad ;)

Here , people only buy PSPs if its hackable , because they dont want to buy orginal games . If somebody wants to sell his PSP , guess what the two demo DVDs contain ...

You most certainly do not.

The PS1 is really easy. For early models, you simply needed to use the demo disc that came with the console, let it boot, and then swap it out for your burned copy. Later models that checked for authenticity every time the drive was opened could be defeated by blocking the sensor near the upper right of the CD drive. The authenticity check in the PSOne could be defeated just by taping a piece of construction paper over the sensor in lower right of the CD drive. 

For the PS2, you just need tape + tissue, clay, a piece of metal, or some other object to block the sensors to make the PS2 think that the drive is stilled closed. After that, you can go to a number of websites and order a Swap Magic disc for about $30.

You can play downloaded games on the GBA and DS with a flashcart for $30. 

The original Xbox has a hard drive, so you can just rent games, rip to them to the hard drive, delete them when you get done, and wash, rinse, and repeat, and wash, rinse, and repeat, and wash, rinse, and repeat......as needed. 

None of this is rocket science.