It's great that your getting 1/48s, it's great scale to collect. Also, you're doing great considering what you have gotten averages pretty well. Just for future reference, you should keep a far more keen eye out for what you want.
I had already purchased an LV1 for about 300.00 two years ago, and still wanted another. Due to the exhorbitant prices these command I decided to be patient and wait. My patience paid off...
A few days ago I scored this...LV1 for $300 - Includes shipping, Strike Pack, and GBP-1S. Mind you I was saving this for other purchases, but this was just too good to pass up.
Just be patient and look hard, even in places (or titles) you wouldn't normally look under.
You will be greatly rewarded.
Currently a lot of MW members are dumping their 1/48s for the 1/60 V2. Just know that most are used, but what the hell, does it really matter if you can get them all at a great price and decent condition?
Welcome to MW.