"Why not? Seems reasonable for a busy airport with all the facilities. Or were you expecting it be a fiver because you are in a spam can and why should you pay?"
I cannot believe there is someone out there who thinks that >£100 to visit in a SEP is "reasonable", whether you are landing at a major international airport or a farm strip.
What are these "facilities" you speak of?
Smithy
ILS, lights hard runway, air trafic services. full all weather airfield, handling services etc.
Why should you be any different if you visit in an SEP or an A320? You use the same facilities (and for longer due to lower speed).
It beggers belief at times.......