I've been a "Pentaxian" for a couple years now. I started off with a kit lens and then dove into the 20-40 Limited head first because I could.
A few weeks ago I replied to an online post asking about lenses that were good for landscapes and astrophotography. My response, while valid, was not one that I'd personally tested.
I recommended that the OP look into craigslist for manual lenses that would fit the bill over DA lenses that cost many times more because if they didn't NEED AF, there was no reason to pay for AF.
After that post i realized that although I'd window shopped on craigslist;ist, I'd never actually made a purchase myself. After a few days and some questions about how one would look for manual lenses on line I thought I should probably look myself.
What I found was a gentleman less than an hour away selling out his father's system as he himself was a nikon user. For less than the price of a DA18-55 I got 4 lenses and 3 film bodies (that, honestly, I'm using as displays/rear element covers)
In that range I got a 28mm f2.8, a 50mm f1.7, a 70-210(macro), and a 1000mm 13.5. These are not apex pieces of glass, but (esp the 28 and 50) they are darn fine lenses, especially for the price.
All I'm saying, esp for the new user, is that while you may think that spending a copious amount on one NICE lenses will help you out, spending far less on a few older lenses could be a great alternative.
Happy shooting and best of luck to everyone.
All for less than the price of a kit lens. - Imgur