In a recent email, a reader asks, “Do you think I should wait until WWDC and the release of Mac OS X Lion to purchase a MacBook Pro, or simply buy one now and upgrade later?”

That’s a great question. On one hand, right now is the best time to buy a MacBook Pro since the new line just came out and you don’t run the risk of an upgrade being right around the corner. On the other hand, you may need to deal with the hassle of purchasing Lion and upgrading within a couple months of receiving your Mac.

To date, the only official estimate for Lion’s release is sometime in the summer of 2011, which may or may not coincide with WWDC. Your wait could very well be shorter, or longer than expected.

This all boils down to personal needs and preferences. If you plan on purchasing a MacBook Pro with the solid-state drive option, you’ll probably find TRIM feature included with Lion to be quite useful. That’s not to say this won’t be available to you if you decide to upgrade later.

Currently, OS X Lion is expected to release at a retail price of $129, which follows suit with previous major releases excluding the more recent Snow Leopard which acted more like a minor update than a stand-alone OS version. That’s not to say that Apple won’t change their usual pricing in this case, as they have been reducing their software prices in general lately.

Overall, the decision is yours to make. You can save a little money and hold off until Lion sees the light of day, or have an extra couple of months with an amazing system that works just fine in the meantime.