No .... Price is too big ATM .. So try to wait it to goes down for 10-20 percent 
You know that in the long run current price is still kinda low and we should reach $10k soon? Most likely in 2018. Waiting for the price decline of 20% is IMO pushing it too hard. Don't be so stingy and buy BTC now or wait too long and miss this opportunity.
If you can't decide for sure what to do, then simply buy some BTC now then wait a bit to see what situation will bring.