Slippery Slope

Not really a Lego fan, but I am an F1 fan. I wasn't really going to buy any but the recent deals for F1 sets has sparked my interest. The Senna sets I paid $40 each, and the Williams sets $24.99. I also am now trying to buy all 10 (plus maybe the new ones) of the Speed Champions as long as I can find those for $15 or less. So far I just have the 3 shown. I paid $14 for the Sauber which is what really started this whole thing, and I now know I should have bought all 4 they had since its...