Also people try to tech a bit to fast in my opinion, don't forget that there is only 33 levels of tech now, (that is EU3 divided by 2), so normally as a western nation you should get a tech every 12 years (all techs have the same value now) to stay in the race.
with 6 points per month (3 base, level 1 advisor, 2 in monarch stats, more or less average) you need 500/6 = 84 months or 7 years to tech up.
Add to that the advisor modifiers (you want to invest heavily into admin you're going to get the -10% tech cost which nearly gives you a year of monarch points worth) and the fact that if you want to invest in a particular domain you are going to have a lot more than 6 points per month (especially true for republics) and you can afford Ideas and stay competitive in tech at the same time, you've just gotta make choices...
I liked the idea when it was first announced, but now that I've tried the demo I like it even more...
also with 6 MP/month it takes 400/6 = 67 months or less than 6 years to get an idea, so even with mediocre stats you can still get one Idea and on tech level every 12 years... (3 more MP/month gives you one more idea every 12 years, so with 12 MP/month you can have 3 ideas and 1 tech every 12 years...).