Hello folks, I am a private pilot with 100 hours looking to start my instrument training. While I know plenty of instructors, there are no good aircraft to rent in the area. Because of this, I am looking to purchase an airplane. I want this airplane to be a good platform for me to get my instrument rating and commercial certificate. My budget is $100,000 or less and I want to get a nice example of whatever airplane I end up going with. For example, I would rather have a nice 172 than a worn out Bonanza. I primarily will be flying alone or with an instructor, but I do have a wife and son that I would like to bring along occasionally. Things I DO NOT care about. 1.) Speed--fast or slow does not make that much of a difference to me at this stage of my flying. 2.) High wing or low wing. 3.) Fixed pitch or constant speed. 4.) Fixed gear or retractable gear. Things I DO care about. 1.) Reasonable maintenance costs. 2.) Parts availability. 3.) Something that would hold value and be easily resellable after about 5-7 years when I purchase my dream plane (Bonanza). A few planes I have looked into: Cessna 172--Seems to fit the bill, but the market seems to be demanding quite a high price compared to other aircraft with similar capabilities. Cessna 182--Solid airplane that meets all my needs, but probably can't find one with good avionics for under $100,000. Beechcraft Sundowner--Very affordable alternative to the 172, but will parts availability be an issue. Will I be able to resell a relatively unpopular aircraft like this? Beechcraft Sierra--Seems like a very capable and affordable airplane that meets my needs, but I am concerned about the same issues mentioned above with the Sundowner. Please give me suggestions on what you think of the aircraft I've mentioned along with any others that I may be overlooking. Thanks for your input.