So my first comment relates to your companies security policy. Being someone who works on the 'other' side of that policy, and probably to the err of most of the poster's on /. (let the hate/trolling begin) it is extremely difficult to protect a business's information assets with current technology/solutions/policies/etc. as it is, let alone if users were able to setup experimental solutions outside of a dedicated lab environment. I won't go into much more detail than that, because those that get it understand, and those that don't - won't - no matter what I say.
My second comment relates to the 'copy-cat environment'. While my current and past employers get benefits from the money I have invested in my equipment at home, ultimately it is for my pleasure and benefit, as I will explain. My decision to respond is being based solely on the fact that today I made such an investment. I decided that to really expand my network and do the things I wanted to do, I needed (yes NEEDED) a new switch. My non-managed Netgear 5 port gig switch and 4 port Asus wireless router with DD-WRT just isn't cutting it. Instead I opted for a Cisco SG300-20, why? because the layer 3 routing, 20 gig ports, backplane capacity/speed, etc. will allow me to not only tinker but have a really great home network. Cost $330. Sure I could have expanded with another $50-80 non-managed switch, and I know many people cannot justify it as I do.
Why? reallywhy? Well because it directly translates into my ultimate success. I cannot believe how many times I've been able to directly relate the things I have/done at home into work scenarios. When we're talking to DBA's, Network Engineers, InfoSec, App/Dev, Senior Execs, Consultants, Vendors, etc. etc. having a wide pool of experience not only buys me credibility in the conversations, but often lends to better solutions. Starting a few months ago at a new Fortune 100 company from a small employer background, I was able to hit the ground running and gain the respect of my co-workers extremely quick. My previous employers actually had small labs, but finding time to tinker in them was next to impossible. Investing around $1000-$1500 per year in my knowledge is a small price to pay for the successful career I've had. And that is on top of the training and tuition assistance i have received from my employer. It's give and takeand for me, it's paid off handsomely. When I interview candidates (as I did three this week) who have been in the IT field for 12+ years and they know about as much as entry level candidates, or work with co-workers who don't understand why I'm pulled into all the high-profile projects I know it's because I've made investments like the switch I just bought.
BTW, Hadoop is my next install we are getting ready to put it in at work and I definitely want to be in-the-know.