It is difficult to find good reasons why I deserve this great lens, therefore I rather tell you why the DA50 f1.8 would come in handy for me.
The DA50 wouldn't be the first prime lens for me, I already have 2 great primes (SMC Pentax-A 50mm F1.7 and Samyang 35mm F1.4) but it would be the first one with autofocus.
Don't get me wrong, I like using manual focus and for my usual motives it works fine for me. Except I want to take some snapshots from my 4 year old niece, in that case I often miss the focus simply because I'm not quick enough.
My only autofocus lens is the 18-55mm kit lens, although I often use this lens outdoors it lacks faster apertures and I have to boost the ISO for low light conditions.
Furthermore the DA50 wouldn't fully replace my Pentax-A lens because I still use my SLR (Pentax P30) from time to time.
Last but not least thank you Larry for this great opportunity and good luck everyone.
Patrick