Not weird at all. My shelf: Sopwith Pup, Bristol F2B, Armstrong Whitworth Siskin, Bristol Bulldog, Tiger Moth, Westland Lysander, P40 Kittyhawk, P51 Mustang III, Spitfire V, Spitfire IX, Typhoon, Mosquito, Short Sunderland, Lancaster III, FAA Grumman Martlet (Wildcat), FAA Grumman Hellcat, FAA Vought Corsair IV, DeHavilland Chipmunk, Bristol Bulldog, Hawker Hunter F9, Gloster Javelin, Folland Gnat, BAe Hawk, Hawker Siddely Sea Harrier FRS1, Sepecat Jaguar GR3, Westland Sea King, Westland Wessex, British Army Bell UH1, Westland Lynx HAS3, Westland Lynx AH7.
My rule is that it has to have been flown by the British armed forces (Royal Flying Corps, British Army, Royal Navy Fleet Air Arm, RAF), my theory being that the British armed forces cover the entire history and most significant aviation developments after the Wright Brothers. Since the Brits have flown lots of interesting American aircraft, there is opportunity to branch out a bit. Nor are German aircraft excluded. The RAF flew many examples of captured German Aircraft. The test squadron was unofficially known as the RAFWaffe. I can build an ME109G, an ME110 Ju88, an FW190, and a Henschel 129 among others (best part is I can use British camo schemes, not those nasty German ones). I was going to justify an Agusta 109 on the basis of three captured from Argentina in the Falklands and flown by the SAS, but the RAF has just bought several for utility use (Hoorah).
Keep up the good work!
Biggles