I have been using PSP for about 5 years now.Yes you heard right 5 years and till now its my main portable gaming console. After using it harshly and playing it almost after every 3rd day till now I have not been able to wore out the buttons on psp and iys analog stick.Yes they are a little bit lose but they are definately solid.
I best thing about psp is its gaming library.Its really really huge .But sadly after 2010 the game for psp was discontinued.But still there are great titles avaliable like my favourite METAL GEAR SOLID Peace Walker, GID OF WAR CHAINS OF OLYMPUS, GHOST OF SPARTA, MIDNIGHT CLUB, GTA VICE CITY, GTA LIBERTY CITY, RESISTANCE RETRIBUTION .and alot of many more which you can just play on and on and will never go out of the games to play.It is such valie for money.
I own a psp 3004 red edition which is classic and only of its kind trust me.i have played so much that I didnt expected it to go very long but it did and not even once I had to go for repairs.This product is solid and os definately a value for money, and I highly recommend it.
Personal advice if you can buy a 3000 series even if you get a second hand model and always buy original sony sd cards as it is guaranteed it wont work after sometimes and you whole game data will be wiped.
Otherwise solid value for money.Go for it.