I agree completely, it's a shame they don't build the reissues with more attention to detail, I'd been craving a Marshall JTM45 for a long time but the originals were well out of my budget then Marshall released the reissues and even though they sounded good they didn't have that true vintage tone I was looking for and I was not impressed with the build quality in relation to the price tag that came with the amp so I decided to go down the build it myself route.
I ended up with an amp much closer in spec to the originals all point to point wireing and at half the price of the reissues, it's sounds incredible and I get compliments every time I play it live with my band, I couldn't be happier plus I really enjoyed the whole amp building process and have done a few more since.
There's not much more satisfying than plugging into an amp you built yourself