As much as you probably dont want to hear it, I say continue. I spin usually every week. I have only about 30 records, and you have more than 150 I believe. I dont stop spinning just because I dont have the latest tracks. I continue spinning because people like to listen to me, and anything beats automation of straight cuts! (Nobody likes to listen to that really).
Its a lot of fun to spin, and sometimes I do get down that I have old ass vinyl (even though most of my tracks are good), but I still keep goin on and spinning whenever I can.
-Mark