Hey thanks, TheCondor. In fact I have bought zero boxes and no more than a dozen boosters since I started collecting in Spring of 2010. I obtained the bulk of the collection through lots on eBay. It's now getting to the point that collecting that way is not efficient anymore because most of what I got in those lots were commons and uncommons.
For example, right now I have 65% of the commons, 55% of the uncommons, 30% of the rares and 11% of the ultra-rares that I need to complete my collection. This is almost all through eBay lots. You can see that getting more lots becomes less efficient as the collection grows, assuming the lots are primarily made up of common/uncommons -- I'd be pulling lots and lots of duplicates. I did just go in for a rare-only lot, which should be helpful, but I am going to have to adapt my strategy and take a more targeted approach to fill in the gaps, which for the common/uncommons may end up costing me a little more than the lot approach but I figure is worth it since it will save me time and effort (no sorting through mountains of cards, though that is really fun). Big gaps in the collection (I have zero cards from sets after HGSS) I will consider filling in with boxes.
What I'd really like to do is trade rather than buy/resell, but I haven't put much thought toward it yet.
Yes, the oversize Legend card does look awesome in a frame! It's a special card that I had no other use for.