Jabba's Palace was the best expansion, Hoth was decent...most of the others were lacklustre.
The second set of bundles was much less interesting—it included another two boosters but no starter, and most of the boosters were from the first three Young Jedi expansions; Jabba's Palace, foreign language, and Unlimited series from SWCCG; and almost no Jedi Knights packs. In California, at least, they were sold at K-Mart near the checkout aisle.
By the mid-2000s, the bundles were gone and Dollar Tree was selling individual packs of mostly Jabba's Palace cards for $1 each.
From 2002-2004, I probably bought 15 or so bundles, and then bought all the packs I could find at Dollar Tree. The last single boosters I ever found were at a Dollar Tree in 2011 and they were surprisingly from Tatooine, I think, rather than Jabba's Palace.
My local Toy-R-Us (UK) did have a load of Special Edition starters going cheap in the early 2000s. I was short of a few extra copies of those SE fixed cards, so managed to grab a few starters before they flew out the shop, then it became a 'if you see anything - buy before someone else does' situation.
There was a welsh game shop I'd visit on holiday. Even now it still has a selection of different CCG starters and boosters but over the last twenty years I've picked it dry of Trek and SW, I grabbed the final Prem and Dag boosters he had on his shelf. The owner's wife would set aside any old Decipher and Precedence CCGs she knew that I collected when ever she stumbled across 'lost' stock out the back while tidying.
I think I'd still grab a similar pack for the marked price just for the fun of opening them if they were sold in the UK. Buying singles off eBay just hasn't got that roller-coaster of excitement vs disappointment like opening a booster.