My extended warranty is out and I’ve just discovered an issue with my rear suspension. Once upon a time adjusting the air pressure would raise or lower the back end an inch or so, now it does nothing.

Questions - How much is required to dig in an replace the air bladder?
- If it’s not the air bladder what next? Compressor?
- Is it worth it? I can’t complain about the ride. Should I just ignore it?
- Is a cheaper option just to get a Fox shock and forget it?