First, bought an Eight Ball Deluxe LE in November of 1984 (with money we received from our wedding). Still have the same machine (and same wife).
Next, bought a WhiteWater in November of 1996 (still have that machine too).
Finally, bought a Mousin' Around in May of 2004 (and yes, still have it, but thinking of selling it to get a MM remake).
So, only bought 3 machines in 35 years, and never sold one...guess I've managed to keep the addiction in check.