Congrats on the 200....I still remember mine. Like any milestone score (200, 500/600, etc.) The first is always the toughest. Once that first one is out of the way, they seem to just keep coming. I definitely agree with Sawbones in that once you meet a goal, you have to re-evaluate your goals and keep pushing yourself. Yes, its only a game, but whats the sense in not striving to be the best you can be, right?
I've had a similar situation this year, set goals for 300/800 this year (like every year). Well, I got my first ever 300 almost a month ago (Went brooklyn on No. 11, and I am damn proud of it!! lol). Well, last nite, I shot 279-275-245 for a whopping total of 799! (I officially despise the 10 pin now....lol).
Congrats again on the 200, 500 is surely not that far behind. Good Luck!!