And speaking of pickup changes versus dollars... This is probably not even relevant to the SE line (I don't know for sure), and definitely not relevant to the core line... But a change of a volume pot can be friggin DRASTIC!!! :-)
I have a Les Paul Studio 50's tribute, which is a cheap guitar. I switched the stock 250K volume pots for some 500K special taper ones. WOW. MASSIVE difference. Don't forget to fiddle with the cheap components FIRST, folks! :-) The biggest difference was definitely in the taper. LPs in the middle position can't have much of a difference between the neck and the bridge volumes, or else the sound just disappears altogether. Before, I could have on at ten and only go down to like 7 or 8 on the other pup. Now it goes to at least 3, I think... Much more useful range. It also made the neck pup way more useful (more brightness).