Thanks for the reply HD... it seems they all fetch over $140 (pre-shipping) for either one of them on eBay just from a quick search I did, so yeah, would be nice to find them around $75 each.

As for collecting the entire series, while it might be nice to one day do so, at this stage of my collecting life, G1 doesn't interest me in the slightest - they were from my childhood and that's pretty much where they'll remain.

Hound and Blitzwing have a certain nostalgic value to me, hence the need to want to re-visit my childhood (Hound being my first ever TF whilst Blitzwing being my first ever Decepticon).