I think you meant burritos store. This is a Mexican Grill. The sandwich shop you're referring to is PotBelly (PBPB). The fast food chain industry, ex: MCD/YUM/JACK on averages trade 25-30X earnings. This is trading 50X P/E because CMG is 0 debt. Positive cash flow. 31m shares outstanding, with 91% already locked in. Huge demand of shares from investors currently. I'm not surprised if they do a forward split. Currently, opening 200 new stores annually. Everything is doing correct with its business module/management. Its sales are magnificient every quarter and annual earning beats.
Your statement of looking back at its price of $40 is impossible. It is the same statement as, I wish I brought Apple stocks when it was $9 or Google when it was penny stocks. A business company expands/evolve over time, thus as it goes forward successfully, so does it's stock price going uptrend. Just like Buffett said this year, a business valuation supposingly increases new highs every 10 years. Thus, we shall not see majority of their evaluations going backward.
I understand and I didn't take it as an attack. I see it as instead of looking at what one could have made, look forward to what one can still make. I invest, because I know a few years or 5+ years I'm still confortable in holding this. GLTYA