PetSmart (NASDAQ: PETM) issued its Q1 earnings numbers on Wednesday, and the market didn't take too kindly to them. At the time of this writing, the shares were down in after-hours trading by over 3%. I can kind of see why.

Revenues did okay, rising 9% to $1.2 billion. Earnings per share, however, dropped like a rock. Last year, the company booked $0.78 per diluted share; this year, the company did $0.32 per diluted share. However, investors need to realize that there was a gain on an investment in the previous year's quarter that skewed results; backing out the $0.47 per-share benefit gives an earnings number of $0.31 per diluted share in Q1 2007. So, the real earnings growth was rather tepid, and this might explain to some degree why there was a bit of a sell-off after the news, even though, according to Briefing.com, PetSmart beat bottom-line expectations by a penny and did exceed on the top-line as well.

Guidance for Q2 was also an issue, as Briefing.com seemed to indicate that management's growth expectations are not precisely what Wall Street was looking for. For the full year, however, PetSmart is looking to do about what Wall Street wants. If management hits the full-year earnings range of somewhere between $1.51 and $1.59 per share, then the P/E ratio on the stock is around 14. Sure, that isn't expensive, but I don't know if I want to enter a company such as this in the kind of environment we find ourselves in. Yes, pets are important and will be taken care of, but people might cut down on pampering them to excess. Plus, there's a lot of competition out there for your pet dollars. Wal-Mart (NYSE: WMT), Costco (NASDAQ: COST), BJ's (NYSE: BJ), and every supermarket in the country all vie for a slice of the pet market.

PetSmart isn't doing terribly, and I've been bullish on the company in the past, but right now, I'm not excited enough by it to place it on my list of investment ideas. I'll let this one go for now and look elsewhere for growth.

Disclosure: I don't own shares in any of the companies mentioned; positions can change at any time.