It will be interesting to see what happens to prices over the next 10 years if you manage to stay on your 1 a year plan (I'm guessing you won't as you'll buy games as they become available).
If you had started this 10 years ago and were just finishing up, you'd be paying a lot more for those last few games than you would have had you bought them right away when you found them.
No way to know what will happen to prices but if they keep going up the way they have been, you'll want to buy them sooner than later.
Dave