I just changed mine last night. I thought about keeping it but I just couldn't find a pillion to match that I liked. My main reason for getting the bigger bike was for riding two up so off it came...
I wish there was a quicker way to swap the cop seat with a 2 up seat. I certainly use the cop seat but it takes me about 45 mins to take off or put on the cop seat.
I was happy to pay all of $125 off eBay for my cop seat set up 9 years ago, still have it on my road king. I bought a pillion from Mustang (for $220) for the ladies and all have said its comfortable; it takes all of 2 minutes and one phillips screw to go from solo to two-up. Even had the seat reupholstered last winter for $90 at a local shop. I have an issue with my back and I couldn't ride the miles I do without it. For those few that have test driven it, all have remarked how smooth the bike feels with that seat. It really does make a difference.
I just built a custom bagger from an 05 police road king. Took off the seat and have all the parts if anyone needs one. They are really comfortable but I put a sidekick on it so I can sit low.
the cop bike seats are supposed to be the most comfortable, and if it could be done i'd use one on my 08 sg. but i got a roadglide seat for it and am happy. next new harley will probably be an electraglide cop bike though. good information on the cop bike seats though, thanks.