I think tesla is a good investment, but at these marked levels, not at its stupidly high valuation, it isn't an online retailer, which can sustain stupidly high valuations for a long period of time because of inflated public perception, Tesla is getting some serious competition right now and will suffer during the next market correction.
The time frame is up to 3-4 years for these buys, but if the sky falls in we will all be taken off guard together and also will own Tesla shares sooner.
I'm about 50% on this idea, and if these levels never get hit, I will not buy Tesla shares directly within 4 years.